Automatic Drive Positioner (DTC/Circuit Diagnosis)
- CHECK SEAT MEMORY INDICATOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and seat memory switch.
- Check continuity between driver seat control unit harness connector B222 and seat memory switch harness connector D10.
Driver seat control unit
Seat memory switch
Continuity
Connector
Terminal
Connector
Terminal
B222
10
D10
13
Yes
26
14
- Check continuity between driver seat control unit harness connector B222 and ground.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B222
10
No
26
Is the inspection result normal?
YES
GO TO STEP 2
NO
Repair or replace harness.
- CHECK MEMORY INDICATOR POWER SUPPLY
Check voltage between seat memory switch harness connector D10 and ground.
(+)
(-)
Voltage
(Approx.)
Seat memory switch
Connector
Terminal
D10
15
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO STEP 3
NO
Check the following:
- 10 A fuse No. 6.
- Harness for open or short between memory indicator and fuse.
- CHECK MEMORY INDICATOR
Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Replace seat memory switch. Refer to Removal and Installation .
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
Is the inspection result normal?
YES
Replace driver seat control unit. Refer to Removal and Installation .
NO
Repair or replace the malfunctioning part.