Nissan Maxima Service and Repair Manual: ECU diagnosis information

Power window lock switch

Component Function Check 1. CHECK POWER WINDOW LOCK Activate the power window lock switch and verify that the front power window RH, rear power window LH and rear power window RH are inoperative ...

Power window main switch

Reference Value TERMINAL LAYOUT PHYSICAL VALUES MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH Fail Safe FAIL-SAFE CONTROL Switches to fail-safe control when malfunction is detected i ...

Other materials:

Power supply and ground circuit
AV CONTROL UNIT AV CONTROL UNIT : Diagnosis Procedure 1.CHECK FUSES Check that the following fuses of the AV control unit are not blown. 2.POWER SUPPLY CIRCUIT CHECK Disconnect AV control unit connectors M115 and M119. Check voltage between the AV control unit connectors M115 and ...

P0451 evap control system pressure sensor
Description The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: Never remove fuel filler cap during DTC confirmation procedur ...

DTC/circuit diagnosis
MAIN LINE BETWEEN DLC AND HVAC CIRCUIT Diagnosis Procedure 1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect the following harness connectors. ECM A/C auto amp. Check the continuity betw ...