Nissan Maxima Service and Repair Manual: Parking lamp circuit
			
	      
			Description
The IPDM E/R (intelligent power distribution module engine room) controls the 
tail lamp relay based on inputs from the BCM over the CAN communication 
lines. When the tail lamp relay is energized, power flows through fuses 46 
and 47, located in the IPDM E/R. Power then flows to the front and rear 
combination lamps, license plate lamps.
Component Function Check
1.CHECK PARKING LAMP OPERATION
WITHOUT CONSULT
	-  Activate IPDM E/R auto active test. Refer to PCS-11, "Diagnosis 
	Description".
- Check that the parking lamp is turned ON.
CONSULT
	- Select "EXTERNAL LAMPS" of IPDM E/R active test item.
- While operating the test item, check that the parking lamp is 
	turned ON.
TAIL : Parking lamp ON
 OFF : Parking lamp OFF
Diagnosis Procedure
1.CHECK PARKING LAMP FUSES
	- Turn the ignition switch OFF.
- Check that the following fuses are not open.

2.CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
CONSULT



	- Turn the ignition switch OFF.
- Disconnect the front and rear combination lamp connectors.
- Turn the ignition switch ON.
- Select "EXTERNAL LAMPS" of IPDM E/R active test item.
- With EXTERNAL LAMPS ON, check the voltage between the front 
	combination lamp connector and ground.
- With EXTERNAL LAMPS ON, check the voltage between the rear 
	combination lamp connector and ground.
- With EXTERNAL LAMPS ON, check the voltage between the license plate 
	lamp connector and ground.



3.CHECK PARKING LAMP CIRCUIT (OPEN)



	- Turn the ignition switch OFF.
- Disconnect IPDM E/R connector E201.
- Check continuity between the IPDM E/R harness connector (A) and 
	the front combination lamp harness connector (B).
- Check continuity between the IPDM E/R harness connector (A) and the 
	rear combination lamp harness connector (B).
- Check continuity between the IPDM E/R harness connector (A) and the 
	license plate lamp harness connector (B).



4.CHECK PARKING LAMP GROUND CIRCUIT



	- Check continuity between the front combination lamp harness 
	connector terminal and ground.
- Check continuity between the rear combination lamp harness connector 
	terminal and ground.
- Check continuity between the license plate lamp harness connector 
	terminal and ground.



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CAN (Controller Area Network) is a serial communication line for real time 
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