Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
M&A branch line circuit
STRG branch line circuitServicing air conditioner
   	The air conditioner system in your NISSAN vehicle
is charged with a refrigerant designed with
the environment in mind.
This refrigerant does not harm the earth's
ozone layer.
Special charging equipment and lubricant is required
when servicing your NISSAN air conditioner.
Using improper refr ...
   	
Front wiper does not operate
   	Description
The front wiper does not operate under any operation conditions
Diagnosis Procedure
1. CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
	Start IPDM E/R auto active test. Refer to PCS-11, "Diagnosis 
	Description".
	Check that the front wiper operates at the LO/HI operation. ...
   	
Vehicle speed signal circuit
   	Description
Combination meter sends vehicle speed signal to power steering control unit.
Diagnosis Procedure
1.PERFORM COMBINATION METER SELF-DIAGNOSIS
Perform combination meter self-diagnosis.
2.CHECK HARNESS BETWEEN COMBINATION METER AND POWER STEERING CONTROL UNIT FOR 
OPEN
	Turn the ...