Nissan Altima 2007-2012 Service Manual: Malfunction indicator lamp
Description
The Malfunction Indicator Lamp (MIL) is located on the combination meter.
The MIL will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has detected an engine system malfunction.
For details, refer to EC-968, "Diagnosis Procedure".
Component Function Check
1.CHECK MIL FUNCTION
1. Turn ignition switch ON.
2. Make sure that MIL lights up.
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-968, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform trouble diagnosis for DTC UXXXX.
2.CHECK DTC WITH METER
Refer to MWI-38, "CONSULT-III Function (METER/M&A)".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace combination meter.
NO >> Repair or replace.
Ignition signal
Description
The ignition signal from the ECM is sent to and amplified by the power
transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induce ...
On board refueling vapor recovery
(ORVR)
Description
From the beginning of refueling, the air and vapor inside the fuel tank go
through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by t ...
Other materials:
B210a steering lock condition switch
Description
There are 2 switches in the steering unit. IPDM E/R compares those 2 switches
conditions to judge the
present steering status and transmit the result to BCM via CAN communication.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B210A is displayed with DTC U1000, first perform the ...
Can communication circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on CAN communication system.
4. Check terminals and connectors for damage, bend and loose con ...
Symptom diagnosis
SYSTEM SYMPTOM
Symptom Table
The diagnostics item numbers show the sequence for inspection. Inspect in
order from item 1.
...