Transverse acceleration sensor
DIAGNOSIS/TROUBLESHOOTING PSM 5.3 (FAULT CODE 4400)
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | Check lead from PSM control module to transverse acceleration sensor for short circuit to ground/open circuit |
|
approx. 5 V Step 2 |
Short circuit to ground/open circuit in electric circuit between PSM control module plug pin 75 and plug of transverse acceleration sensor pin 3 or PSM control module is faulty ->End |
| 2 | Check ground lead of the transverse acceleration sensor for open circuit |
|
approx. 5 V Step 3 |
Open circuit in circuit between PSM control module plug pin 19 and pin 1 of the transverse acceleration sensor plug, or PSM contol module faulty ->End |
| 3 | Check signal lead of the transverse acceleration sensor for short circuit to B+ |
|
< 0.3V Step 4 |
Short circuit to B+ between PSM control module plug pin 18 and pin 2 of the transverse acceleration sensor plug ->End |
| 4 | Check signal lead of the transverse acceleration sensor for short circuit to ground |
|
Step 5 | Short circuit to ground between PSM control module plug pin 18 and pin 2 of the transverse acceleration sensor plug ->End |
| 5 | Check signal lead of the transverse acceleration sensor for open circuit |
|
< 5 Step 6 |
Open circuit between PSM control module plug pin 18 and pin 2 of the transverse acceleration sensor plug ->End |
| 6 | Transverse acceleration sensor faulty | ->End | ||