Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Diagnosis Procedure




POWER WINDOW SERIAL LINK

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Procedure


1. CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.Turn ignition switch ON.
2.Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.





Is the inspection result normal?
YES- Replace front power window switch (passenger side). Front Power Window Switch.
NO- GO TO 2.

2. CHECK POWER WINDOW SERIAL LINK SIGNAL

1.Turn ignition switch OFF.
2.Disconnect front power window switch (passenger side) connector.
3.Turn ignition switch ON.
4.Check voltage between front power window switch (passenger side) harness connector and ground.





Is the inspection result normal?
YES- Replace power window main switch. Front Power Window Switch.
NO- GO TO 3.

3. CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.Disconnect power window main switch connector.
2.Check continuity between power window main switch harness connector and front power window switch (passenger side) harness connector.





3.Check continuity between power window main switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END