Nissan Maxima Service and Repair Manual: ECU diagnosis information

Microphone signal circuit

Description Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal circuits. Diagnosis Procedure 1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNI ...

Audio unit

Reference Value TERMINAL LAYOUT PHYSICAL VALUES ...

Other materials:

B2557 vehicle speed
Description BCM receives the 2 vehicle speed signals via CAN communication. One signal is transmitted by the "combination meter". Another signal is transmitted by "ABS actuator and electric unit (control unit)". BCM compares both signals to detect the vehicle speed. DTC Logic DTC DETECTIO ...

The light reminder warning does not sound
Description Light reminder warning does not sound even though headlamp is illuminated. Diagnosis Procedure 1. CHECK COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) OPERATION Check that the headlamps operate normally by operating the combination switch (lighting and turn signal switch). ...

Passenger side door mirror defogger
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up. Component Function Check 1.CHECK DOOR MIRROR DEFOGGER RH Check that the heating wire of door mirror defogger RH is heated when turning the rear window de ...