Mazda CX-7 2007 Workshop Manual page 1413

SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (EXTERIOR OPEN/
No.1 UNABLE TO COMMUNICATE WITH GENERIC ELECTRONIC MODULE (GEM)[POWER WINDOW
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SYSTEMS (EXTERIOR OPEN/CLOSE FUNCTION)]
1 Door glass does not operate even though various operations are performed
• Power window main switch malfunction
• Power window motor malfunction
• Battery malfunction (low voltage)
POSSIBLE CAUSE
• power window initialization procedure error
• Open circuit in wiring harness between power window main switch and BCM
• BCM malfunction
Diagnostic Procedure
Step
• Inspect the operation of the door glass by
1
operating the power window main switch.
• Is the manual operation normal?
• Inspect the operation of the door glass by
2
operating the power window main switch.
• Does the door glass operate in auto?
• Does the door lock/unlock normally?
3
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No.2 DOOR GLASS DOES NOT OPERATE USING THE KEYLESS TRANSMITTER[POWER WINDOW
SYSTEMS (EXTERIOR OPEN/CLOSE FUNCTION)]
2 DOOR GLASS DOES NOT OPERATE USING THE KEYLESS TRANSMITTER
• Keyless control module malfunction
• BCM malfunction
• Open circuit in wiring harness between keyless control module and BCM
POSSIBLE CAUSE
• Any door or liftgate is open
• Key is inserted in steering lock
Diagnostic Procedure
Step
• Inspect the door lock/unlock operation using the
1
transmitter.
• Does it operate normally?
• Inspect the open/close condition of the doors
2
and the liftgate.
• Is the reason why they do not lock/unlock
because a door or the liftgate is open?
• Verify whether the key is in the steering lock.
3
• Is the reason why they do not lock/unlock
because the key is inserted in the steering lock?
CLOSE FUNCTION)]
Inspection
Inspection
Yes Go to the next step.
No Inspect the following parts, and repair or replace.
• Power window main switch
(See 09-12-8 POWER WINDOW MAIN SWITCH
INSPECTION.)
• Power window motor (See 09-12-7 POWER
WINDOW MOTOR INSPECTION.)
• Battery (Low voltage)
Yes Go to the next step.
No Perform the power window initialization procedure.
(See 09-12-13 POWER WINDOW INITIALIZATION
PROCEDURE.)
Yes Inspect the wiring harness between the power window
main switch and the BCM.
If there is any malfunction, repair or replace the
applicable part.
No Replace the BCM.
(See 09-40-1 BODY CONTROL MODULE (BCM)
REMOVAL/INSTALLATION.)
Yes Inspect the following parts, and repair or replace.
• BCM (See 09-40-2 BODY CONTROL MODULE
(BCM) INSPECTION.)
• Keyless control module (Vehicles with advanced
keyless system) (See 09-14-30 KEYLESS
CONTROL MODULE INSPECTION[ADVANCED
KEYLESS SYSTEM].)
No Go to the next step.
Yes System is normal (Does not operate when a door or the
liftgate is open).
No Go to the next step.
Yes System is normal (Does not operate when the key is
inserted in the steering wheel lock)
No Go to the next step.
id090361808600
Action
id090361808700
Action
09-03B–3
09-03B