Flow of Diagnosis
The following test procedures are designed to test the system as a whole, identifying faulty areas and indicating possible solutions by functional operations.During all test procedures the entry/exit mode switch must be OFF.
The first three test procedures listed i.e. drivers seat position adjustments steering column position adjustments, rear view mirror position adjustments must be carried out four times, each time under one of the conditions stated below:
- Key in ignition barrel
- Ignition key in auxiliary position
- river's door open with ignition key out
- Driver's door closed within the last 30 seconds with ignition key out.
Driver's seat position adjustments
1. Locate seat switch pack on the side of the seat cushion.
Operate the fore/aft movement control switch. Does the seat respond in the correct manner?
2. Yes: Proceed to step 3.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
3. Operate front and rear, raise/lower movement control switches. Does seat respond in the correct manner in each case?
Yes: Proceed to step 4.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
4. Operate squab recline/incline movement control switch. Does squab respond in correct manner?
Yes: Proceed to step 5.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
5. Operate lumbar pump inflate/deflate control switch. Does lumbar pad stiffen and slacken accordingly?
Yes: Proceed to step 6
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
6. Operate headrest raise/lower switch. Does headrest respond in correct manner?
Yes: Proceed to step 7.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
7. Remove key from ignition, close driver's door and allow 30 seconds to elapse. Repeat steps 1 - 6 and check that adjustment cannot be made.
Test complete; proceed to Memory Position Set.
Steering column position adjustments
1. Locate steering column joystick switch the LH side of the column.
2. Operate switch to give fore/aft movement. Does the column respond in correct manner?
Yes: Proceed to step 3.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
3. Operate the switch to give raise/lower movement. Does column respond in the correct manner in each case?
Yes: Proceed to step 4.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
4. Remove key from ignition, close driver's door and allow 30 seconds to elapse. Repeat steps 1 - 3 and check that adjustment cannot be made.
5. Test complete; proceed to Memory Position Set.
Rear view mirror position adjustments
1. Locate mirror select switch on driver's door switch pack and select driver's side mirror, i.e. rotate switch towards the door.
2. Locate rear view mirror joystick switch on driver's door pack.
Operate the switch to give left/right and up/down movement. Does the mirror respond in the correct manner?
3. Yes: Proceed to step 4 or 5.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
Japanese market vehicles only
4. Operate the switch to action 'fold away mode'. Does mirror respond in the correct manner in each case?
Yes: Proceed to step 5.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
All markets
5. Operate mirror select switch to opposite position and repeat steps 1 to 4 for passenger side mirror.
6. With ignition switched to auxiliary, select reverse gear and operate mirror joy-stick downwards. Does passenger side mirror dip automatically?
Yes: Proceed to step 7.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
7. Remove key from ignition, close driver's door and allow 30 seconds to elapse. Repeat steps 1 - 6 and check that adjustment cannot be made.
8. Test complete; proceed to Memory set position.
Memory set position - driver's side
1. Position the entry/exit switch, located on the LH side of the steering column, to off and insert the key in the ignition.
2. Operate switches to position column, mirrors and seats to preferred positions.
3. Select 'memory' on the driver's door switch pack. Check that switch illuminates.
4. Depress desired memory button, 1, 2 or 3, on door switch pack within 4 seconds of memory select. Check that a chime sounds to confirm memory storage.
5. Operate the switches so that memorized positions are changed. Depress relevant memory option button, 1, 2 or 3 and check that all positional settings are restored as memorized.
6. Remove key from ignition, close all doors and allow 30 seconds to elapse. Repeat steps 1 to 4 and check that adjustment cannot be made.
7. Re-adjust settings so that memorized positions are changed, leave the vehicle and operate remote memory recall by locking and unlocking using the remote transmitter. Use both transmitters to check both memory positions. Check all positional settings are restored as memorized.
Yes: Proceed to step 8.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
8. Test complete.
Carry out the passenger seat position adjustments procedure below under each of the conditions stated below:
- Key in ignition barrel
- Auxiliary ON
- Passenger's door open
- Passenger's closed within the last 30 seconds.
Passenger seat position adjustments
1. Locate seat switch pack on the side of the seat cushion.
Operate the fore/aft movement control switch. Does the seat respond in the correct manner?
2. Yes: Proceed to step 3.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
3. Operate front and rear, raise/lower movement control switches. Does seat respond in the correct manner in each case?
Yes: Proceed to step 4.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
4. Operate squab recline/incline movement control switch. Does squab respond in correct manner?
Yes: Proceed to step 5.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
5. Operate lumbar pump inflate/deflate control switch. Does lumbar pad stiffen and slacken accordingly?
Yes: Proceed to step 6
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
6. Operate headrest raise/lower switch. Does headrest respond in correct manner?
Yes: Proceed to step 7.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
7. Remove key from ignition, close passenger's door and allow 30 seconds to elapse. Repeat steps 1 - 6 and check that adjustment cannot be made.
8. Test complete; proceed to Memory set position.
Memory set position - passenger's side
1. Insert the key in the ignition.
2. Operate switches to adjust seat to preferred positions.
3. Select 'memory' on the passenger's door switch pack. Check that switch surround illuminates.
4. Depress desired memory button, 1, 2 or 3, on door switch pack within 4 seconds of memory select. Check that a chime sounds to confirm memory storage.
5. Operate the switches so that memorized positions are changed. Depress relevant memory option button, 1, 2 or 3 and check that all positional settings are restored as memorized.
Yes: Proceed to step 6.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
6. Remove key from ignition, close door and allow 30 seconds to elapse. Repeat steps 1 - 4 and check that adjustment cannot be made.
7. Test complete.
Carry out the exit/entry mode procedure below under the conditions stated below:
- Key in ignition barrel
- Driver's door closed
- Auxiliary ON
- Park brake ON
- Gear selector in Park.
Exit/Entry Mode
1. From the driver's seat, position the memory mode switch, located on the LH side of the steering column, to auto.
2. Operate the seat, column and mirror switches to preferred driving position.
NOTE: Seat must be a minimum of 50 mm from rear end stop.
3. Remove key from ignition. Check that seat moves backwards and column tilts upwards and away, creating maximum space for exit.
Yes: Proceed to step 4.
No: Abort test and refer to Diagnostic subroutines. Symptom Related Diagnostic Procedures
4. Refit key in ignition, open driver's door. Check that seat moves backwards and column tilts upwards and away, creating maximum space for exit.
Yes: Proceed to step 5.
No: Abort test and refer to Diagnostic SubRoutines. Symptom Related Diagnostic Procedures
5. Leave key in ignition and exit the vehicle, closing driver's door. Ensure that column and seat return to driving position. Re-enter vehicle and ensure that column and seat move to entry position. Close door and check that seat/column return to previously selected driving positions.
Yes: Test complete.
No: Refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
Seat heaters (driver and passenger)
1. Turn ignition ON and locate heater select switch on the center console.
2. Operate the switch to initiate seat heating. Does the switch surround illuminate?
Yes: Proceed to step 3.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
3. Allow sufficient time for heater to take effect. Does seat heat level increase in all designated areas?
Yes: Proceed to step 4.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
4. Allow time span to exceed 12 minutes. Does switch surround light extinguish and heating cease?
Yes: Proceed to step 5.
No: Abort test and refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures
5. Re-select heating, allow cycle to commence then operate switch again. Does switch surround light extinguish and heating cease?
Yes: Test complete
No: Refer to Diagnostic Sub-Routines. Symptom Related Diagnostic Procedures