1.CHECK FUNCTION

Is the inspection result normal?
YES >> Front door request switch is OK.
NO >> Refer to DLK "Diagnosis Procedure".
Regarding Wiring Diagram information, refer to DLK "INTELLIGENT KEY SYSTEM : Wiring Diagram".
1.CHECK DOOR REQUEST SWITCH INPUT SIGNAL

Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DOOR REQUEST SWITCH CIRCUIT


Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between malfunctioning front door request switch harness
connector and ground. 
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK DOOR REQUEST SWITCH
Refer to DLK "Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning front door request switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI "Intermittent Incident".
>> Inspection End.
1.CHECK DOOR REQUEST SWITCH

Is the inspection result normal?
YES >> Inspection End.
NO >> Replace malfunctioning front door request switch.
Maintenance under severe operating conditions
The maintenance intervals shown on the preceding pages are for normal
operating conditions. If the vehicle is mainly operated under severe driving
conditions as shown below, more frequent maintenance must be performed on the
following items as shown in the table.
Severe driving conditions
...
Readiness for inspection/maintenance (I/M) test
Due to legal requirements in some states and
Canadian Provinces, your vehicle may be required
to be in what is called the "ready condition"
for an Inspection/Maintenance (I/M) test of
the emission control system.
The vehicle is set to the "ready condition" when it
is driven through certain d ...