Mazda 1996 626 Service Manual page 460

P1
Flowchart No.3 Symptom
Possible cause
• Damaged power seat switch
• Damaged front-lift motor
• Open or short circuit in wiring harness
• Poor connection of connector
Flowchart No.4 Symptom
Possible cause
• Damaged power seat switch
• Damaged rear-lift motor
• Open or short circuit in wiring harness
• Poor connection of connector
P 1 -8
POWER SEAT
Front of driver's seat does not move up or down
Remedy
1. Measure the voltage at the terminal wires of the front-lift
motor with the power seat switch in the following posi­
tions.
Switch position
Front lift
If correct, c ieck the front- ift motor.
2.
(Refer to page P1-10.)
3. If not as specified, repair the wiring harness
(power seat switch—front-lift motor).
Rear of driver's seat does not move up or down
Remedy
. Measure the voltage at the terminal wires of the rear-lift
1
motor connector with the power seat switch in the fol­
lowing positions.
Switch position
Rear lift
2. If correct, check the rear-lift motor.
(Refer to page P1-10.)
3. If not as specified, repair the wiring harness
(power seat switch—rear-lift motor).
B+: Battery positive voltage
Terminal
UP
(R) wire
DOWN (R/W) wire
B+: Battery positive voltage
Terminal
UP (Y/R) wire
DOWN
(Y) wire
Voltage
B+
B+
Voltage
B+
B+