Nissan Maxima Service and Repair Manual: ASCD indicator

ASCD brake switch

Description When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON. ECM detects the state of the brake pedal by those two types of input (ON/OFF s ...

Cooling fan

Description The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant pressure, and air conditioner ON signal. The control system has 4-step con ...

Other materials:

P1078, P1084 EVT control position sensor
Description Exhaust valve timing control position sensor detects the concave groove of the exhaust camshaft rear end. This sensor signal is used for sensing a position of the exhaust camshaft. This sensor uses a Hall IC. Based on the position of the exhaust camshaft, ECM controls e ...

Key reminder function symptoms
Symptom Table KEY REMINDER FUNCTION MALFUNCTION NOTE: Before performing the diagnosis in the following table, check "Work flow". Refer to DLK-9, "Work Flow". If the following symptoms are detected, check systems shown in the "Diagnosis/service procedure" column in this or ...

P0172, P0175 fuel injection system function
DTC Logic DTC DETECTION LOGIC With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from A/F sensor 1. The ECM calculates the necessary compensation to correct the o ...