Nissan Maxima Service and Repair Manual: Wiring diagram

ECU diagnosis information

POWER STEERING CONTROL UNIT Reference Value TERMINA LAYOUT PHYSICAL VALUES CAUTION: When using circuit tester or oscilloscope to measure voltage for inspection, be sure not to extend forcibl ...

Symptom diagnosis

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION) Description Hard steering when fully turning the steering wheel. Light steering when driving at a high speed. Diagnosis Procedure 1 ...

Other materials:

B terminal C 
Description  The "B" terminal is constantly supplied with battery power. Diagnosis Procedure  CAUTION: Perform diagnosis under the condition that the engine cannot start by the following procedure.  Remove fuel pump fuse.  Crank or start the engine (where possible) unt ...

IPDM E/R (intelligent power distribution module engine room)
Reference Value VALUES ON THE DIAGNOSIS TOOL TERMINAL LAYOUT PHYSICAL VALUES Fail Safe CAN COMMUNICATION CONTROL When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to nor ...

P0725 engine speed
Description The engine speed signal is transmitted from ECM to TCM via CAN communication line. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe speed. NOTE: Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn igni ...