Nissan Pathfinder: Power Control System - Ipdm E/r

Nissan Pathfinder (R53) 2022-2025 Service Manual / Electrical & Power Control :: Power Control System / Ipdm E/r

Precautions
Ecu Diagnosis Information. Ipdm E/r
Removal and Installation. Ipdm E/r (intelligent Power Distribution Module Engine Room)

Precautions Nissan Pathfinder 2022

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collisions.

Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” sections of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, it is recommended that all maintenance and repair be performed by an authorized NISSAN/INFINITI dealer.

Improper repair, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see “SRS AIR BAG”.

Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation:

When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition/power switch ON or engine running, never use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury.

When using air or electric power tools or hammers, always switch the ignition/power switch OFF, disconnect the 12V battery or batteries, and wait at least 3 minutes before performing any service.

Procedure without Cowl TopCover

When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc. to prevent damage to the windshield.

Ecu Diagnosis Information. Ipdm E/r Nissan Pathfinder 5th Gen

Values on the Diagnosis Tool

NOTE:

The following table includes information (items) inapplicable to this Nissan Pathfinder vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor	Condition		Value/Status
Compressor request 1	Engine running	A/C switch OFF	Off
Compressor request 1	Engine running	A/C switch ON (A/C compressor is operating)	On
Easy fill tire alert horn req	NOTE: This item is indicated, but not monitored.		Off
Cranking enable-TCM	Engine crank condition	Not satisfied	Prohibit
		Satisfied	Permit
		—	Stop
	Receives invalid CAN signal		Unknown
Cranking enable-ECM	Engine crank condition	Not satisfied	Prohibit
		Satisfied	Permit
		—	Stop
	Receives invalid CAN signal		No req
DTRL REQ	Engine running	Lighting switch 1ST	Off
DTRL REQ	Engine running	Lighting switch OFF	On
COOLING FAN REQ	Engine running	Cooling fan stop	10%
		Cooling fan LO operation	42%
		Cooling fan HI operation	90%
FR WIPER REQ	Receives invalid CAN signal		NG
	Ignition switch ON	Front wiper HI operation	HIGH
		Front wiper LO operation	LOW
		Front wiper forced termination	STOP
		Front wiper stopped	RETURN
HIGH BEAM REQ	Lighting switch 2ND	Lighting switch LO	Off
HIGH BEAM REQ	Lighting switch 2ND	Lighting switch HI	On
Horn request	NOTE: This item is indicated, but not monitored.		No req
Low beam request	Lighting switch OFF		Off
Low beam request	Lighting switch 2ND		On
POSITION LIGHT REQ	Lighting switch OFF		Off
POSITION LIGHT REQ	Lighting switch 1ST		On
IGNITION SW	Ignition switch OFF		Off
	Ignition switch ON		On
	Ignition switch START		START
	—		No request
FRONT FOG LAMP REQ NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Lighting switch 1ST	Front fog lamp switch OFF	Off
	Lighting switch 1ST	Front fog lamp switch ON	On
Shift position	Receives invalid CAN signal		NG
	Engine running	Manual mode	M
		D range	D
		N range	N
		R range	R
		P range	P
COMP ECV STATUS	ECV control output	Normal	OK
COMP ECV STATUS	ECV control output	Malfunction	NG
BATTERY VOLTAGE	Ignition switch ON		11 V – 14 V
Stop/start status	—	—	—
Stop/start status	—	—	—
FR WIPER STOP POSITION	Ignition switch ON	Except front wiper stop position	ACTIVE P
FR WIPER STOP POSITION	Ignition switch ON	Front wiper stop position	STOP P
IGNITION POWER SUPPLY	NOTE: This item is indicated, but not monitored.		Off
HOOD SW (CAN) NOTE: This item is monitored only on the Nissan Pathfinder vehicle with Stop/Start system.	Open the hood		OPEN
	Close the hood		CLOSE
	Transmits invalid CAN signal		NG
A/C RELAY	Engine running	A/C switch OFF	Off
A/C RELAY	Engine running	A/C switch ON (A/C compressor is operating)	On
REVERSE SIGNAL (CAN)	Transmits invalid CAN signal		NG
	Ignition switch ON	R range	On
	Ignition switch ON	Except R range	Off
COMP ECV CURRENT	Engine running	A/C switch OFF	0.00 A
COMP ECV CURRENT	Engine running	A/C switch ON (A/C compressor is operating)	0.00 A – 1.00 A
Starter&starter cont relay stat	Starter relay and starter control relay are OFF		Off, Off
	Starter relay is ON		On, Off
	Starter relay and starter control relay are ON		On, On
	Transmits invalid CAN signal		invalid
Hood switch NOTE: This item is monitored only on the Nissan Pathfinder vehicle with Remote engine start system.	Close the hood		Open
	Open the hood		Close
IGN RELAY	Ignition switch OFF		Open
IGN RELAY	Ignition switch ON		Close
Cooling fan relay-2	Engine running	Cooling fan stop	OFF
Cooling fan relay-2	Engine running	Cooling fan LO operation Cooling fan HI operation	ON
Compressor	Engine running	A/C switch OFF	OFF
Compressor	Engine running	A/C switch ON (A/C compressor is operating	ON
Front wiper HI/LO relay	Ignition switch ON	Except front wiper HI operated	OFF
Front wiper HI/LO relay	Ignition switch ON	Front wiper HI operated	ON
Horn relay	NOTE: This item is indicated, but not monitored.		OFF
Front wiper relay	Ignition switch ON	Front wiper stop	OFF
Front wiper relay	Ignition switch ON	Front wiper is operating	ON
Battery current sen value (LIN)	Engine running Battery: Full charge Engine Idling		(–200.00) – (+300.00) A
Headlamp warning (LH) (LIN)	Lighting switch OFF		Open
Headlamp warning (LH) (LIN)	Lighting switch 2ND		Close
Headlamp warning (RH) (LIN)	Lighting switch OFF		Open
Headlamp warning (RH) (LIN)	Lighting switch 2ND		Close
Compressor ECV duty	Engine running	A/C switch OFF	0%
Compressor ECV duty	Engine running	A/C switch ON (A/C compressor is operating	0 – 100%
Cooling fan relay-3	Engine running	Cooling fan stop Cooling fan LO operated	0%
Cooling fan relay-3	Engine running	Cooling fan HI operated	100%
Front fog lamp (LH) NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Lighting switch 1ST	Front fog lamp switch OFF	0%
	Lighting switch 1ST	Front fog lamp switch ON	100%
Front fog lamp (RH) NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Lighting switch 1ST	Front fog lamp switch OFF	0%
	Lighting switch 1ST	Front fog lamp switch ON	100%
Tail lamp (LH)	Lighting switch OFF		0.0%
Tail lamp (LH)	Lighting switch 1ST		100.0%
Tail lamp (RH)	Lighting switch OFF		0%
Tail lamp (RH)	Lighting switch 1ST		100%
Headlamp LO (RH)	Lighting switch OFF		0%
Headlamp LO (RH)	Lighting switch 2ND		100%
Headlamp LO (LH)	Lighting switch OFF		0%
Headlamp LO (LH)	Lighting switch 2ND		100%
Parking lamp (LH) req (LIN)	Lighting switch OFF (Except for Canada) Lighting switch AUTO (For Canada)		Close
Parking lamp (LH) req (LIN)	Lighting switch 1ST		Open
DTRL (LH) req (LIN)	Engine running and parking brake is released	Lighting switch 2ND	Close
DTRL (LH) req (LIN)	Engine running and parking brake is released	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	Open
Headlamp LO (LH) req (LIN)	Lighting switch OFF (Except for Canada) Lighting switch AUTO (For Canada)		Close
Headlamp LO (LH) req (LIN)	Lighting switch 2ND		Open
Headlamp HI (LH) req (LIN)	Lighting switch 2ND	Lighting switch LO	Close
Headlamp HI (LH) req (LIN)	Lighting switch 2ND	Lighting switch HI	Open
Parking lamp (RH) req (LIN)	Lighting switch OFF (Except for Canada) Lighting switch AUTO (For Canada)		Close
Parking lamp (RH) req (LIN)	Lighting switch 1ST		Open
DTRL (RH) req (LIN)	Engine running and parking brake is released	Lighting switch 2ND	Close
DTRL (RH) req (LIN)	Engine running and parking brake is released	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	Open
Parking/DTRL (LH) output (LIN)	Engine running and parking brake is released	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	100.0%
	Engine running and parking brake is released	Lighting switch 2ND	6.0%
	Engine stop	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	0.0%
Parking/DTRL (RH) output (LIN)	Engine running and parking brake is released	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	100.0%
	Engine running and parking brake is released	Lighting switch 2ND	6.0%
	Engine stop	Lighting switch OFF (Except for Canada) Lighting switch AUTO (Only when the illumination judgement by auto light system is OFF) (For Canada)	0.0%
Headlamp HI (RH) req (LIN)	Lighting switch 2ND	Lighting switch LO	Close
Headlamp HI (RH) req (LIN)	Lighting switch 2ND	Lighting switch HI	Open
Headlamp LO (RH) req (LIN)	Lighting switch OFF (Except for Canada) Lighting switch AUTO (For Canada)		Close
Headlamp LO (RH) req (LIN)	Lighting switch 2ND		Open
Battery status	—		—
Battery status	—		—
T LAMP LH CIRC MALFUNCTN	Tail lamp LH power supply circuit reaches the retry upper limit.		0 – 1
NMB T LAMP LH CIRC RETRY	Retry of tail lamp LH power supply circuit is permitted.		0 – 20
Fr fog lamp (LH) circ malfunctn NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Front fog lamp LH circuit reaches the retry upper limit.		0 – 1
T LAMP RH CIRC MALFUNCTN	Tail lamp RH power supply circuit reaches the retry upper limit.		0 – 1
NMB T LAMP RH CIRC RETRY	Retry of tail lamp RH power supply circuit is permitted.		0 – 20
NMB T LAMP RH CIRC SHORT	Tail lamp RH power supply circuit detects over current.		0 – 5
NMB F FOG LH CIRC RETRY NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Retry of front fog lamp LH circuit is permitted.		0 – 20
NMB F FOG LH CIRC SHORT NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Front fog lamp LH circuit detects over current.		0 – 5
F FOG RH CIRC MALFUNCTN NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Front fog lamp RH circuit reaches the retry upper limit.		0 – 1
NMB F FOG RH CIRC RETRY NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Retry of front fog lamp RH circuit is permitted.		0 – 20
NMB F FOG RH CIRC SHORT NOTE: This item is monitored only on the Nissan Pathfinder vehicle with front fog lamp.	Front fog lamp RH circuit detects over current.		0 – 5
NMB T LAMP LH CIRC SHORT	Tail lamp LH power supply circuit detects over current.		0 – 5
BAT DISCHARGE COUNT NOTE: This item is monitored only on the Nissan Pathfinder vehicle with Stop/Start system.	Ignition switch ON		Less than 65000

Reference Value

TERMINAL LAYOUT

PHYSICAL VALUES

Terminal No. (Wire color)		Description		Condition		Value (Approx.)
Terminal No. (Wire color)		Signal name	Input/Output
+	-	Signal name	Input/Output
1 (L)	Ground	Battery power supply	Input	Ignition switch OFF		Battery voltage
2 (G)	Ground	Battery power supply	Input	Ignition switch OFF		Battery voltage
4 (W)	Ground	Tail lamp LH power supply	Output	Lighting switch OFF		0 V
4 (W)	Ground	Tail lamp LH power supply	Output	Lighting switch 1ST		Battery voltage
8 (BG)	Ground	ECM relay output	Output	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		0 V
8 (BG)	Ground	ECM relay output	Output	For a few seconds after placing ignition switch OFF or ignition switch ON		Battery voltage
9 (Y)	Ground	Horn relay control	Input	Horn switch OFF		Battery voltage
9 (Y)	Ground	Horn relay control	Input	Horn switch ON		0 V
12 (B)	Ground	Ground	—	Ignition switch OFF		0 V
17 (G)	Ground	Tail lamp RH power supply	Output	Lighting switch OFF		0 V
17 (G)	Ground	Tail lamp RH power supply	Output	Lighting switch 1ST		Battery voltage
22 (P)	Ground	CAN-Low	Input/Output	—		—
24 (L)	Ground	CAN-High	Input/Output	—		—
31 (B)	Ground	Ground	—	Ignition switch OFF		0 V
33 (BR)	Ground	Front wiper auto stop signal	Input	Ignition switch ON	Front wiper stop position	0 V
33 (BR)	Ground	Front wiper auto stop signal	Input	Ignition switch ON	Other than above	Battery voltage
38 (R)	Ground	LIN communication (headlamp)	Input/output	Ignition switch ON
43 (W)	Ground	Ignition relay output	Output	Ignition switch OFF		0 V
43 (W)	Ground	Ignition relay output	Output	Ignition switch ON		Battery voltage
45 (L)	Ground	Front wiper motor HI power supply	Output	Ignition switch ON	Front wiper switch OFF	0 V
45 (L)	Ground	Front wiper motor HI power supply	Output	Ignition switch ON	Front wiper switch HI	Battery voltage
46 (V)	Ground	Fuel pump power supply	Output	More than a few seconds after placing ignition switch ON or ignition switch OFF		0 V
46 (V)	Ground	Fuel pump power supply	Output	For a few seconds after placing ignition switch ON or engine running		Battery voltage
47 (B)	Ground	Ground	—	Ignition switch ON		0 V
48 (Y)	Ground	Front wiper motor LO power supply	Output	Ignition switch ON	Front wiper switch OFF	0 V
48 (Y)	Ground	Front wiper motor LO power supply	Output	Ignition switch ON	Front wiper switch LO	Battery voltage
50 (L)	Ground	Headlamp (LO) LH power supply	Output	Lighting switch OFF		0 V
50 (L)	Ground	Headlamp (LO) LH power supply	Output	Lighting switch 2ND		Battery voltage
51¹ (Y)	Ground	Front fog lamp LH power supply	Output	Lighting switch 1ST	Front fog lamp switch OFF	0 V
51¹ (Y)	Ground	Front fog lamp LH power supply	Output	Lighting switch 1ST	Front fog lamp switch ON	Battery voltage
52 (R)	Ground	Hood switch signal	Input	Close the hood		0 V
52 (R)	Ground	Hood switch signal	Input	Open the hood		Battery voltage
57¹ (W)	Ground	Front fog lamp RH power supply	Output	Lighting switch 1ST	Front fog lamp switch OFF	0 V
57¹ (W)	Ground	Front fog lamp RH power supply	Output	Lighting switch 1ST	Front fog lamp switch ON	Battery voltage
62 (P)	Ground	Headlamp (LO) RH power supply	Output	Lighting switch OFF		0 V
62 (P)	Ground	Headlamp (LO) RH power supply	Output	Lighting switch 2ND		Battery voltage
65 (SB)	Ground	A/C compressor power supply	Output	Engine running	A/C switch OFF	0 V
65 (SB)	Ground	A/C compressor power supply	Output	Engine running	A/C switch ON (A/C compressor is operating)	Battery voltage
67 (G)	Ground	Throttle control motor relay control	Input	Ignition switch ON –> OFF		Battery voltage
67 (G)	Ground	Throttle control motor relay control	Input	Ignition switch ON		0 V
70 (P)	Ground	Ignition relay output	Output	Ignition switch OFF		0 V
70 (P)	Ground	Ignition relay output	Output	Ignition switch ON		Battery voltage
71 (L)	Ground	Ignition relay output	Output	Ignition switch OFF		0 V
71 (L)	Ground	Ignition relay output	Output	Ignition switch ON		Battery voltage
72 (R)	Ground	Throttle control motor relay output	Output	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		0 V
72 (R)	Ground	Throttle control motor relay output	Output	For a few seconds after placing ignition switch OFF or ignition switch ON		Battery voltage
73 (LG)	Ground	ECM relay output	Output	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		0 V
73 (LG)	Ground	ECM relay output	Output	For a few seconds after placing ignition switch OFF or ignition switch ON		Battery voltage
75 (W)	Ground	ECM relay output	Output	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		0 V
75 (W)	Ground	ECM relay output	Output	For a few seconds after placing ignition switch OFF or ignition switch ON		Battery voltage
76 (P)	Ground	Fuel pump relay control	Input	Approximately 1 second after placing the ignition switch ON or ignition switch OFF		0 V
76 (P)	Ground	Fuel pump relay control	Input	Approximately 1 second or more placing the ignition switch ON		Battery voltage
78 (L)	Ground	ECM relay output	Output	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		0 V
78 (L)	Ground	ECM relay output	Output	For a few seconds after placing ignition switch OFF or ignition switch ON		Battery voltage
81 (R)	Ground	Battery power supply	Input	Ignition switch OFF		Battery voltage
83 (W)	Ground	Starter motor power supply	Output	Other than at engine cranking		0 V
83 (W)	Ground	Starter motor power supply	Output	At engine cranking		Battery voltage
86 (V)	Ground	Starter relay power supply	Input	Other than at engine cranking		0 V
86 (V)	Ground	Starter relay power supply	Input	At engine cranking		Battery voltage
91 (R)	Ground	LIN communication (battery current sensor)	Input/output	Ignition switch ON
93 (V)	Ground	ECM relay control	Input	Ignition switch OFF (more than a few seconds after placing ignition switch ON)		Battery voltage
93 (V)	Ground	ECM relay control	Input	For a few seconds after placing ignition switch OFF or ignition switch ON		0 V
98 (W)	Ground	A/C compressor (ECV) control	Output	ECV	Duty ratio: 0% (MODE5 or MODE6)	0 V
					Duty ratio: 50% (MODE3 or MODE4)
					Duty ratio: 100% (MODE1, MODE2 or MODE7)	Battery voltage
104² (L)	Ground	Starter switch signal	—	—		—
106 (V)	Ground	Cooling fan control	Output	Engine running	Cooling fan stop	Battery voltage
106 (V)	Ground	Cooling fan control	Output	Engine running	Cooling fan LO operated Cooling fan HI operated	0 V
107 (B)	Ground	Cooling fan control	Output	Engine running	Cooling fan stop Cooling fan LO operated	Battery voltage
107 (B)	Ground	Cooling fan control	Output	Engine running	Cooling fan HI operated	0 V

¹: With front fog lamps or pre-wiring for front fog lamps

²: Except for Mexico

Fail-safe

FAIL-SAFE CONTROL BY DTC

IPDM E/R performs fail-safe control when any DTC are detected.

DTC No.	CONSULT display		Fail-safe
B121A-11	FR FOG LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	Shuts off the power supply to the front fog lamp LH power supply circuit until the front fog lamp ON conditions are no longer satisfied.
B1256-11	FR FOG LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	Shuts off the power supply to the front fog lamp RH power supply circuit until the front fog lamp ON conditions are no longer satisfied.
B12A4-81	Battery current sensor	[INVALID SERIAL DATA RECEIVED]	Fix the power generation command value to 14.3 V.
B12A4-92	Battery current sensor	[PFM/INCORRECT OPERATN]	Fix the power generation command value to 14.3 V.
B20A2-87	Headlamp (RH) LIN communication	[MISSING MESSAGE]	Transmits the headlamp warning signal to the combination meter via CAN communication (when the ignition switch is ON, the headlamp warning is displayed on the information display of the combination meter). Transmits the request signal to both side LED headlamp control modules via LIN communication, and turns ON the headlamp (LO) and parking lamp.
B20A4-87	Headlamp (LH) LIN communication	[MISSING MESSAGE]
B20C7-11	A/C clutch	[CIRCUIT SHORT TO GROUND]	Inhibit A/C compressor (magnetic clutch) operation
B20C7-15	A/C clutch	[CIRC SHORT TO BATT OR OPEN]	Inhibit A/C compressor (magnetic clutch) operation
B20C8-14	Compressor (ECV)	[CIRC SHORT TO GRND OR OPEN]	Inhibit compressor (ECV) operation
B20D4-11	TAIL LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	Shuts off the power supply to the following power supply circuits until the parking lamp, license plate lamp, side marker lamp and tail lamp ON conditions are no longer satisfied: Front side marker LH Tail lamp LH Rear side marker LH License plate lamp LH License plate lamp RH
B20D5-11	TAIL LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	Shuts off the power supply to the following power supply circuits until the parking lamp, license plate lamp, side marker lamp and tail lamp ON conditions are no longer satisfied: Front side marker RH Tail lamp RH Rear side marker RH
B20E2-96	LED HEADLAMP RH	[CMPNENT INTERNAL MLFNCTN]	Transmits the headlamp warning signal to the combination meter via CAN communication (when the ignition switch turns ON, the headlamp warning is displayed on the information display of the combination meter). Transmits the request signal to both side LED headlamp control modules via LIN communication, and turns ON the headlamp (LO) and parking lamp.
B20E3-96	LED HEADLAMP LH	[CMPNENT INTERNAL MLFNCTN]
U0073-00	Control module comm Bus A Off	[NO SUBTYPE INFO]	Refer to CAN COMMUNICATION CONTROL.
U2140-87	CAN comm err (ECM)	[MISSING MESSAGE]
U214F-87	CAN comm err (BCM)	[MISSING MESSAGE]

CAN COMMUNICATION CONTROL

When CAN communication with the ECM and BCM is impossible, the IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With ECM

Control part	Fail-safe operation
Cooling fan	The cooling fan is operated at HI operation when the ignition switch is placed ON. The cooling fan turns OFF when the ignition switch is placed OFF.
A/C Compressor (magnet clutch)	Smart FET OFF

If No CAN Communication Is Available With BCM

Control part	Fail-safe operation
Headlamp	Turns ON the headlamp (LO) when the ignition switch is placed ON. Turns OFF the headlamp (LO) when the ignition switch is placed OFF. Headlamp (HI): OFF
Parking lamp License plate lamp Side marker Tail lamp Illumination	Turns ON the parking lamp, license plate lamp, side marker lamp, tail lamp and each illumination when the ignition switch is placed ON. Turns OFF the parking lamp, license plate lamp, side marker lamp, tail lamp and each illumination when the ignition switch is placed OFF.
Front wiper	The status just before activation of fail-safe control is maintained until the ignition switch is placed OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the ignition switch is placed OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front wiper motor is operating.
Daytime running light	Daytime running light: OFF
Front fog lamp	Front fog lamp: OFF
Ignition relay	The status just before activation of fail-safe is maintained.
Starter motor	Starter relay: OFF

IGNITION RELAY CONTROL

The IPDM E/R monitors the voltage at the contact circuit of the ignition relay inside it.
The IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit.

Voltage judgement		IPDM E/R judgement	Operation
Ignition relay contact side	Ignition relay control condition	IPDM E/R judgement	Operation
ON	ON	Ignition relay ON normal	—
OFF	OFF	Ignition relay OFF normal	—
ON	OFF	Ignition relay ON stuck	Detects DTC [B20DD-73: IGN RELAY ON CIRC]
OFF	ON	Ignition relay OFF stuck	Detects DTC [B20DE-72: IGN RELAY OFF CIRC]

FRONT WIPER CONTROL

The IPDM E/R detects the front wiper stop position from the front wiper auto stop signal.

When front wiper auto stop signal is in the condition listed below while the front wiper is operating, the IPDM E/R activates the fail-safe.

Ignition switch	Front wiper switch	Front wiper auto stop signal	Fail-safe
ON	OFF	The signal does not change from the battery voltage for 10 seconds.	Stops front wiper power supply for 20 seconds
ON	Except OFF	The signal does not change for 10 seconds.	Stops front wiper power supply for 20 seconds

DTC Inspection Priority Chart

Priority	DTC No.	CONSULT display
1	U0073-00	Control module comm Bus A Off	[NO SUBTYPE INFO]
	U1000-01	CAN COMM CIRCUIT	[ELECTRICAL MALFUNCTION]
	U2004-87	CAN comm err (CCM/ST angle sensor)	[MISSING MESSAGE]
	U2140-87	CAN comm err (ECM)	[MISSING MESSAGE]
	U2141-87	CAN comm err (TCM)	[MISSING MESSAGE]
	U2148-87	CAN comm err (brake control unit)	[MISSING MESSAGE]
	U214E-87	CAN comm err (combination meter)	[MISSING MESSAGE]
	U214F-87	CAN comm err (BCM)	[MISSING MESSAGE]
	U2153-87	CAN comm err (HVAC)	[MISSING MESSAGE]
	U2159-87	CAN comm err (steering control unit)	[MISSING MESSAGE]
	U2176-87	CAN comm err (CCM/ST angle sensor)	[MISSING MESSAGE]
2	B1200-54	IPDM E/R	[NOT CONFIGURED]
	B120E-04	IPDM E/R	[SYSTEM INTERNAL MALFUNCTN]
	B120E-42	IPDM E/R	[MEMORY ERROR]
	B120E-51	IPDM E/R	[SYSTEM INTERNAL MALFUNCTN]
	B120E-55	IPDM E/R	[NOT CONFIGURED]
3	B12A3-73	Fuel pump Off circuit	[CIRC SHORT TO BATTERY]
	B12A4-81	Battery current sensor	[INVALID SERIAL DATA RECEIVED]
	B12A4-92	Battery current sensor	[PFM/INCORRECT OPERATN]
	B12A4-94	Battery current sensor	[UNEXPECTED OPERATION]
	B20A1-16	IPDM E/R	[CIRC VOLT BELOW THRESHOLD]
	B20A1-72	IPDM E/R	[ACTUATOR STUCK OPEN]
	B20A3-72	ETC RELAY STUCK ON	[ACTUATOR STUCK OPEN]
	B20B2-72	FRONT WIPER MOTOR CIRCUIT	[ACTUATOR STUCK OPEN]
	B20DD-73	IGN RELAY ON CIRC	[ACTUATOR STUCK CLOSED]
	B20DE-72	IGN RELAY OFF CIRC	[ACTUATOR STUCK OPEN]
4	B121A-11	FR FOG LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]
	B121A-15	FR FOG LAMP LH PWR SPLY CIRC	[CIRC SHORT TO BATT OR OPEN]
	B1256-11	FR FOG LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]
	B1256-15	FR FOG LAMP RH PWR SPLY CIRC	[CIRC SHORT TO BATT OR OPEN]
	B20A2-87	Headlamp (RH) LIN communication	[MISSING MESSAGE]
	B20A4-87	Headlamp (LH) LIN communication	[MISSING MESSAGE]
	B20C7-11	A/C clutch	[CIRCUIT SHORT TO GROUND]
	B20C7-15	A/C clutch	[CIRC SHORT TO BATT OR OPEN]
	B20C8-14	Compressor (ECV)	[CIRC SHORT TO GRND OR OPEN]
	B20D4-11	TAIL LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]
	B20D5-11	TAIL LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]
	B20E2-96	LED HEADLAMP RH	[CMPNENT INTERNAL MLFNCTN]
	B20E3-96	LED HEADLAMP LH	[CMPNENT INTERNAL MLFNCTN]

DTC Index

NOTE:

The details of time display are as follows:

CRNT: A malfunction is detected now.

PASS: A malfunction was detected in the past.

×: Applicable

Self Diagnostic Result
DTC No.	CONSULT display		Fail-safe	Reference
B1200-54	IPDM E/R	[NOT CONFIGURED]	—	DTC Description
B120E-04	IPDM E/R	[SYSTEM INTERNAL MALFUNCTN]	—	DTC Description
B120E-42	IPDM E/R	[MEMORY ERROR]	—	DTC Description
B120E-51	IPDM E/R	[SYSTEM INTERNAL MALFUNCTN]	—	DTC Description
B120E-55	IPDM E/R	[NOT CONFIGURED]	—	DTC Description
B121A-11	FR FOG LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	×	DTC Description
B121A-15	FR FOG LAMP LH PWR SPLY CIRC	[CIRC SHORT TO BATT OR OPEN]	—	DTC Description
B1256-11	FR FOG LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	×	DTC Description
B1256-15	FR FOG LAMP RH PWR SPLY CIRC	[CIRC SHORT TO BATT OR OPEN]	—	DTC Description
B12A3-73	Fuel pump Off circuit	[CIRC SHORT TO BATTERY]	—	DTC Description
B12A4-81	Battery current sensor	[INVALID SERIAL DATA RECEIVED]	×	DTC Description
B12A4-92	Battery current sensor	[PFM/INCORRECT OPERATN]	×	DTC Description
B12A4-94	Battery current sensor	[UNEXPECTED OPERATION]	―	DTC Description
B20A1-16	IPDM E/R	[CIRC VOLT BELOW THRESHOLD]	―	DTC Description
B20A1-72	IPDM E/R	[ACTUATOR STUCK OPEN]	―	DTC Description
B20A2-87	Headlamp (RH) LIN communication	[MISSING MESSAGE]	×	DTC Description
B20A3-72	ETC RELAY STUCK ON	[ACTUATOR STUCK OPEN]	—	DTC Description
B20A4-87	Headlamp (LH) LIN communication	[MISSING MESSAGE]	×	DTC Description
B20B2-72	FRONT WIPER MOTOR CIRCUIT	[ACTUATOR STUCK OPEN]	—	DTC Description
B20C7-11	A/C clutch	[CIRCUIT SHORT TO GROUND]	×	DTC Description
B20C7-15	A/C clutch	[CIRC SHORT TO BATT OR OPEN]	×	DTC Description
B20D4-11	TAIL LAMP LH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	×	DTC Description
B20D5-11	TAIL LAMP RH PWR SPLY CIRC	[CIRCUIT SHORT TO GROUND]	×	DTC Description
B20DD-73	IGN RELAY ON CIRC	[ACTUATOR STUCK CLOSED]	×	DTC Description
B20DE-72	IGN RELAY OFF CIRC	[ACTUATOR STUCK OPEN]	×	DTC Description
B20E2-96	LED HEADLAMP RH	[CMPNENT INTERNAL MLFNCTN]	×	DTC Description
B20E3-96	LED HEADLAMP LH	[CMPNENT INTERNAL MLFNCTN]	×	DTC Description

×: Applicable

Network-DTC
DTC No.	CONSULT display		Fail-safe	Reference
U0073-00	Control module comm Bus A Off	[NO SUBTYPE INFO]	×	DTC Description
U1000-01	CAN COMM CIRCUIT	[ELECTRICAL MALFUNCTION]	—	DTC Description
U2004-87	CAN comm err (CCM/ST angle sensor)	[MISSING MESSAGE]	—	DTC Description
U2140-87	CAN comm err (ECM)	[MISSING MESSAGE]	×	DTC Description
U2141-87	CAN comm err (TCM)	[MISSING MESSAGE]	—	DTC Description
U2148-87	CAN comm err (brake control unit)	[MISSING MESSAGE]	—	DTC Description
U214E-87	CAN comm err (combination meter)	[MISSING MESSAGE]	—	DTC Description
U214F-87	CAN comm err (BCM)	[MISSING MESSAGE]	×	DTC Description
U2153-87	CAN comm err (HVAC)	[MISSING MESSAGE]	—	DTC Description
U2159-87	CAN comm err (steering control unit)	[MISSING MESSAGE]	—	DTC Description
U2176-87	CAN comm err (CCM/ST angle sensor)	[MISSING MESSAGE]	—	DTC Description