Nissan Sentra Service Manual: Symptom diagnosis

Basic inspection

Diagnosis and repair workflow Workflow OVERALL SEQUENCE DETAILED FLOW 1.INTERVIEW CUSTOMER Interview the customer to obtain as much information as possible about the conditions and environm ...

Heater and air conditioning system symptoms

Symptom table ...

Other materials:

Basic inspection
Diagnosis and repair workflow Trouble diagnosis flow chart Trouble diagnosis procedure Interview with customer Interview with the customer is important to detect the root cause of can communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosi ...

P0137 HO2S2
DTC Logic DTC DETECTION LOGIC The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold) causes the longer switching time. To judge the malfunctions of heated oxygen ...

P0300, P0301, P0302, P0303, P0304 Misfire
DTC Logic DTC DETECTION LOGIC When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crankshaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring. Sensor Input signal to ECM ECM function ...