Fault code 46: Diagnosis/troubleshooting
DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 46)
| Work instruction |
Display OK |
If not OK |
| 1 |
Check micro switches of both door locks |
- Connect PST 2 and switch on ignition.
- Close doors
- Do not lock or secure the vehicle
- Select the following switch positions in the "Input signals" menu
- Driver's side secured
- Passenger's side secured
- Driver's side locked
- Passenger's side locked
|
Driver's side not secured (not USA)
Passenger's side not secured (not USA)
Driver's side not locked
Passenger's side not locked
Step 4 |
Step 2 |
| 2 |
Check wiring from control module to door lock for short circuit to ground |
- Pull plugs A and B off the control module
- Pull plug off the door lock with the incorrect switch positions from step 1
- Measure resistance between plug A on control module pin 5 and ground (if on driver's side) or pin 28 on the control module and ground (if on passenger's side)
|
Step 3 |
Repair wiring harness
-> End |
| 3 |
Check wiring from control module to door lock for open circuit |
- Pull plug off the door lock with the incorrect switch positions from step 1
- Measure resistance between plug A on control module pin 5 and plug on door lock pin 7 (if on driver's side) or pin 28 on the control module and pin 7 on the door lock (if on passenger's side)
|
< 5
Step 6 |
Repair wiring harness
-> End |
| 4 |
Check leads from the alarm system control module to the servomotors for short circuit to ground |
- Pull plugs off both door locks
- Pull plugs A and B off the alarm system control module
- Measure resistance between plug B on control module pin 9 and ground
- Measure resistance between plug A on control module pin 19 and ground
|
Step 5 |
Repair wiring harness
-> End |
| 5 |
Check leads from the alarm system control module to the servomotors for open circuit |
- Pull plugs off both door locks
- Pull plugs A and B off the alarm system control module
- Measure resistance between plug B on control module pin 9 and pin 2 on plugs of the right and left door locks
- Measure resistance between plug A on control module pin 19 and pin 9 on plugs of the right and left door locks
|
< 5
Step 7 |
Repair wiring harness
-> End |
| 6 |
- Replace right or left door lock
|
-> End |
| 7 |
|
-> End |