Symptom Related Diagnostic Procedures

Work Flow




PRELIMINARY CHECK

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 30 km/h (19 MPH).
2. End

After performing preliminary check, go to symptom chart.

Before starting trouble diagnoses, perform preliminary check. Symptom numbers in the symptom chart correspond with those of preliminary check.

Part 1:

Part 2:

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.

If NG, check the following.
- 40A fusible link (letter f, located in the fuse and fusible link box)
- 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.

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)