Nissan Altima 2007-2012 Service Manual: ECU diagnosis
Power window lock switch
Description
Ground circuit of main power window and door lock/unlock switch shuts off if
power window lock switch of
main power window and door lock/unlock switch is operated. This inhibits all
...
Power window main switch
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
Wiring Diagram
Fail Safe
FAIL-SAFE CONTROL
Switches to fail-safe control wh ...
Other materials:
Ignition timing
Description
This describes how to check the ignition timing. For the actual procedure,
follow the instructions in “BASIC
INSPECTION”.
Special Repair Requirement
1.CHECK IGNITION TIMING
1. Attach timing light to loop wires (2) as shown.
- Intake manifold collector (1)
- Timing l ...
P0603 ECM Power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMAT ...
DLC 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 terminals and connectors of the data link connector for damage,
bend and loose connection
(connector side and harness side ...
