PSG16 / P2102 02
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Performance loss.
Throttle Valve Actuator Circuit , Short to Ground
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Performance loss.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Output short circuit to ground for more than 0.6 s. |
System reaction to a fault:
| Limp Home, engine torque limitation. |
| Control module uses 100% PWM signal as substitute value for EGR control. |
| Shut-off damper, motor not working. |
| The control module uses 0% PWM signal as substitute value for the shut-off flap control valve. |
OK report:
| Fault criteria NOT fulfilled for 0.6 s. |
Checking the wiring harness
| • | Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force. |
| • | Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins. |
Diagnostic help
EGR turned off in case of fault.
