Symptom Related Diagnostic Procedures
WORK FLOW
PRELIMINARY CHECK
If initialization has not been performed, automatic drive positioner will not operate.
PROCEDURE A
1. Insert key in the ignition key cylinder. (Ignition switch is in "OFF" position.)
2. Open close open driver side door. (Do not perform with the door switch operation.)
3. End
PROCEDURE B
1. Drive the vehicle at more than 25 km/h (16 MPH).
2. End
After performing preliminary check, go to symptom chart.
Before starting trouble diagnoses below, perform preliminary check. Symptom numbers in the symptom chart correspond with those of preliminary check.
SYMPTOM CHART
DIAGNOSTIC PROCEDURE 1
(Power supply and ground circuit for driver's seat control unit)
Power Supply Circuit Check
Check voltage between seat control unit LH terminal 1 and ground.
(Refer to wiring diagram.)
If NG, check the following.
- Circuit breaker
- Harness for open or short between circuit breaker and seat control unit LH
Ground Circuit Check
Check continuity between seat control unit LH terminal 33 and ground.
(Refer to wiring diagram.)
Steps 1 - 2:
Steps 3 - 4:
DIAGNOSTIC PROCEDURE 2
(Sliding encoder check)
Steps 1 - 2:
Steps 3 - 4:
DIAGNOSTIC PROCEDURE 3
(Reclining encoder check)
Steps 1 - 2:
Steps 3 - 4:
DIAGNOSTIC PROCEDURE 4
[Lifting encoder (front) check]
Steps 1 - 2:
Steps 3 - 4:
DIAGNOSTIC PROCEDURE 5
[Lifting encoder (rear) check]
Steps 1 - 2:
DIAGNOSTIC PROCEDURE 6
(Sliding motor check)
Steps 1 - 2:
DIAGNOSTIC PROCEDURE 7
(Reclining motor check)
Steps 1 - 2:
DIAGNOSTIC PROCEDURE 8
[Lifting motor (front) check]
Steps 1 - 2:
DIAGNOSTIC PROCEDURE 9
[Lifting motor (rear) check]
Step 1:
DIAGNOSTIC PROCEDURE 10
(Power seat switch check)
Step 1:
DIAGNOSTIC PROCEDURE 11
(Cancel switch check)
Steps 1 - 2:
Steps 3 - 5:
Step 6:
DIAGNOSTIC PROCEDURE 12
(Key, detention, door switch and vehicle speed sensor check)
Step 1:
DIAGNOSTIC PROCEDURE 13
(Seat memory switch check)
Steps 1 - 2:
DIAGNOSTIC PROCEDURE 14
(Memory indicator check)