PCM/ECM sets DTC P2118 if the PCM/ECM detects motor's PWM signal exceeds threshold value.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | Case1 |
•
PWM range check | 1. Poor connection or damaged harness 2. Faulty ETC Motor 3. Faulty TPS |
Case2 |
•
Deviation between throttle position and constant setpoint check | ||
Case3 |
•
Deviation between throttle position and moving setpoint check | ||
Enable Conditions | Case1 |
•
TPS adaptation finished
•
Battery voltage >10V
•
No relevant error | |
Case2 |
•
TPS adaptation finished
•
Constant TPS setpoint
•
No relevant error | ||
Case3 |
•
TPS adaptation finished
•
No relevant error | ||
Threshold Value | Case1 |
•
Moving mean value of the controller output > 95% | |
Case2 |
•
Throttle position - Throttle position setpoint >2.5% | ||
Case3 |
•
Throttle position - Throttle position setpoint >10% | ||
Diagnostic Time |
•
0.5 sec. | ||
Limp-Home |
•
Forced limited RPM mode : The PCM/ECM limits engine speed to 1500rpm
•
Electrical check of the ETC system is prohibited | ||
MIL On Condition |
•
Immediate | ||
