Nissan Altima 2007-2012 Service Manual: Component diagnosis

Diagnosis system (IPDM E/R)
Diagnosis Description AUTO ACTIVE TEST Description In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation. • Oil pressure warning lamp ...

Other materials:

Inspection and adjustment
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT Precaution for TCM and CVT Assembly Replacement CAUTION: • Check if new data (Unit ID) are entered correctly after replacing CVT assembly and erasing data in TCM. (Connect CONSULT-III, and then turn ignition switch OFF.) • When replacing CV ...

ECM branch line circuit
Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - ECM - Harne ...

P1421 Cold start control
Description ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC P1421 is displayed ...