Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
The headlamps (both sides) do not switch to high beam when the lighting switch is in the HI or PASS setting.
- COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) INSPECTION
Check the combination switch (lighting and turn signal switch). Refer to System Description .
Is the combination switch (lighting and turn signal switch) normal?
YES
GO TO 2.
NO
Repair or replace the malfunctioning part.
- CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT
CONSULT
- Select HL HI REQ of IPDM E/R DATA MONITOR item.
- With operating the lighting switch, check the monitor status.
Monitor item
Condition
Monitor status
HL HI REQ
Lighting switch
(2nd)
HI or PASS
ON
Except for HI or PASS
OFF
Is the item status normal?
YES
GO TO 3.
NO
Replace BCM. Refer to Removal and Installation .
- HEADLAMP (HI) CIRCUIT INSPECTION
Check the headlamp (HI) circuit. Refer to Diagnosis Procedure .
Is the headlamp (HI) circuit normal?
YES
Replace IPDM E/R. Refer to Removal and Installation .
NO
Repair or replace the malfunctioning part.