Fault code 4340: Diagnosis/troubleshooting
DIAGNOSIS/TROUBLESHOOTING CHART - FAULT CODE 4340
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | Stop light switch function test |
|
0 - 5 0 - 5 Step 2 |
Replace stop light switch -> End |
| 2 | Check lead from PSM control module to stop light switch for short circuit to ground/open circuit |
|
> 11 V Step 2 |
Short circuit to ground or open circuit between PSM control module plug pin 37 and ignition lock pin 15 -> End |
| 3 | Check lead from PSM control module to stop light switch for short circuit to voltage |
|
< 0.3 V Step 3 |
Short circuit to voltage between PSM control module plug pin 37 and stop light switch pin 3 -> End |
| 4 | Short circuit to ground/open circuit in the signal circuit |
|
> 11 V Step 4 |
Short circuit to ground or open circuit between PSM control module plug pin 32 and stop light switch pin 2, or stop light switch faulty -> End |
| 5 | Short circuit to voltage in signal circuit |
|
< 0.3 V Step 5 |
Short circuit to voltage between PSM control module plug pin 32 and stop light switch pin 2 -> End |
| 6 | PSM control module faulty | -> End | ||