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System Tests: Notes

NOTE: Check operation of driver's power seat in manual mode (using power seat switch) and in memory mode (using return switch). Memory problems with power seats may be caused by problems in power tilt/telescopic steering system.
SYSTEM TEST INDEX

Symptom Test Or Action
Manual & Memory Modes Inoperative ECU Power Source Circuit Test
Replace Power Seat ECU
Slide Operation Inoperative (Slide) Motor Circuit Test
Power Seat Switch Circuit Test
Replace Power Seat ECU
Recline Operation Inoperative (Recline) Motor Circuit Test
Power Seat Switch Circuit Test
Replace Power Seat ECU
Front Vertical Operation Inoperative (Front Vertical) Motor Circuit Test
Power Seat Switch Circuit Test
Replace Power Seat ECU
Rear Vertical Operation Inoperative (Rear Vertical) Motor Circuit Test
Power Seat Switch Circuit Test
Replace Power Seat ECU
Headrest Operation Inoperative (Headrest) Motor Circuit Test
Power Seat Switch Circuit Test
Replace Power Seat ECU
Memory Return Function Inoperative Memory Switch Circuit Test
Position Sensor Circuit Test
Fig 1: Identifying Driver's Seat ECU Harness Connector Terminals (Pin Side View)
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