Short to Battery or Open in TPS1 signal circuit is detected, PCM sets DTC P0123.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Voltage Monitoring | 1. Poor Connector Connection 2. Short to Battery or Open in TPS1 Signal Circuit 3. Open in TPS Supply Circuit 4. Defected TPS1 | |
Enable Condition | Case 1 |
•
Ignition Switch "ON" | |
Case 2 |
•
Ignition Switch "ON"
•
Engine operating state idle :
–
Pedal value less than 0.01% (Pedal sensor 1 voltage 0.859V, not pushed at all)
–
TPS setpoint less than 58%
–
TPS1 and TPS2 ratio failure detected or TPS2 failure detected | ||
Threshold Value | Case 1 |
•
TPS1 signal voltage higher than 4.9V | |
Case 2 |
•
TPS1 signal voltage at idle higher than 3.0V | ||
Diagnostic Time |
•
Continuous | ||
MIL ON Condition |
•
1 Driving Cycle | ||
