Mazda CX-7 2007 Workshop Manual page 1405

SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/
STEP INSPECTION
6 VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE
• Is there continuity between the following
power window switch terminals (wiring
harness-side) and ground?
— Driver's side (at main switch)
• 2C (sensor 1 signal)
• 2B (sensor power supply)
— Passenger's side (at sub-switch)
• J (sensor 1 signal)
• B (sensor power supply)
7 VERIFY WHETHER MALFUNCTION IS IN
POWER WINDOW SWITCH OR ELSEWHERE
• Turn the ignition switch to the ON position.
• Inspect the voltage at the following power
window switch terminals (sensor 2 signal):
— Driver's side (at main switch): 2D
— Passenger's side (at sub-switch) : H
• Does the voltage alternate between 0 V and
approx. 12 V when the door glass is moving
up and down?
8 VERIFY SENSOR 2 OUTPUT SIGNAL
• Turn the ignition switch to the ON position.
• Inspect the voltage at power window motor
terminal B (sensor 2 signal).
• Does the voltage alternate between 0 V and
approx. 12 V when door glass is moving up
and down?
9 VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE
• Turn the ignition switch to the LOCK position.
• Disconnect the power window switch
connector and power window motor
connector.
• Is there continuity between the following
power window switch terminals and power
window motor terminals?
— Driver's side (at main switch— power
window motor): 2D and B
— Passenger's side (at sub-switch— power
window motor): H and B
10 VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE
• Is there continuity between the following
power window switch terminals (sensor 2
signal) and ground?
— Driver's side (at main switch): 2D
— Except driver's side (at sub-switch) : H
11 VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR POWER WINDOW SWITCH
• Turn the ignition switch to the ON position.
• Measure the voltage at the following power
window switch terminals (sensor 2 signal):
— Driver's side (at main switch): 2D
— Except driver's sideat (at sub-switch): H
• Is the voltage approx. 12 V?
12 REINSPECT MALFUNCTION SYMPTOM
AFTER REPAIR
• Is malfunction no longer present?
CLOSE FUNCTION)]
Yes Replace the wiring harness between the power window
switch and power window motor, then go to Step 12.
No Go to the next step.
Yes Replace the power window switch (malfunction in power
window switch automatic mode control), then go to Step 11.
No Go to the next step.
Yes Go to the next step.
No Replace the power window motor, then go to Step 12.
Yes Go to the next step.
No Repair the wiring harness between the power window
switch and power window motor, then go to Step 12.
Yes Repair the wiring harness between the power window
switch and power window motor, then go to Step 12.
No Go to the next step.
Yes Repair the wiring harness between the power window
switch and front driver-side power window motor, then go to
the next step.
No Replace the power window switch (open circuit or short to
power supply/ground in power window switch), then go to
the next step.
• Troubleshooting completed.
Yes
• Explain repairs to the customer.
No Reinspect malfunction symptoms, then repeat from Step 1 if
malfunction recurs.
ACTION
09-03A–9
09-03A