Stop light switch: Diagnosis/troubleshooting
DIAGNOSIS TROUBLESHOOTING - FAULT CODE 4340, AS OF MY 2002
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | Visual inspection |
|
Step 2 |
-> End |
| 2 | Check stop light inputs in the control unit |
|
Tester display:
|
Step 3 |
|
Tester display:
|
Step 3 | ||
|
Step 9 |
Step 3 | ||
| 3 | Check stop light switch |
|
Step 8 | |
|
< 5 | |||
|
||||
|
< 5 Step 4 |
|||
| 4 | Check break circuit for short circuit to B+ |
|
< 0.3 V Step 5 |
Short circuit to B+ between the PSM control unit plug pin 37 and stop light switch pin 4 Repair wiring harness -> End |
| 5 | Check break circuit for open circuit |
|
> 11 V Step 6 |
Open circuit between the PSM control unit plug pin 37 and stop light switch pin 4 Repair wiring harness -> End |
| 6 | Check make circuit for short circuit to B+ |
|
< 0.3 V Step 7 |
Short circuit to B+ between the PSM control unit plug pin 32 and stop light switch pin 2 Repair wiring harness -> End |
| 7 | Check make circuit for open circuit |
|
> 11 V Step 9 |
Open circuit between the PSM control unit plug pin 32 and stop light switch pin 2 Repair wiring harness -> End |
| 8 |
|
-> End | ||
| 9 |
|
-> End | ||