PCM/ECM sets DTC P0653 if the PCM/ECM detects reference voltage higher than threshold value.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical Check | 1. Short to battery in Power circuit 2. Poor connection or damaged harness 3. Faulty ETC |
Enable Conditions |
•
IG "ON" | |
Threshold Value |
•
Short to battery
•
TPS power supply voltage > 5.5V | |
Diagnostic Time |
•
0.04 sec. | |
MIL On Condition |
•
1 driving cycle | |
Limp-Home |
•
Forced limited RPM mode : The PCM/ECM limits engine speed to 1500rpm
•
Electrical check of the ETC system is prohibited |
