Nissan Altima 2007-2012 Service Manual: Both side headlamps do not switch to high beam
Description
The headlamps (both sides) do not switch to high beam when the lighting switch is in the HI or PASS setting.
Diagnosis Procedure
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to BCS-10, "System Description".
Is the combination switch normal? YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2.CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT
1. Select "HL HI REQ" of IPDM E/R DATA MONITOR item.
2. With operating the lighting switch, check the monitor status.
Is the item status normal? YES >> GO TO 3
NO >> Replace BCM. Refer to BCS-96, "Removal and Installation" .
3.HEADLAMP (HI) CIRCUIT INSPECTION
Check the headlamp (HI) circuit. Refer to EXL-40, "Description".
Is the headlamp (HI) circuit normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation" .
NO >> Repair or replace the malfunctioning part.
Normal operating condition
Description
XENON HEADLAMP
• The brightness and color of the light may vary slightly immediately after
turning the headlamp ON. This condition
will remain until the xenon bulb becomes stable. T ...
Both side headlamps (LO) are not
turned on
Description
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis Procedure
1.CHECK COMBINATION SWITCH
Check the combination switch. Refer to BCS-10, "System De ...
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