DH2 - DTC 1120: Check For Stuck TP Sensor or Throttle Linkage

Diagnostic Trouble Code (DTC) 1120 indicates the TP signal is below the closed throttle position range of 9.80% (0.49 volts).

Possible Causes:
- Binding or bent throttle linkage.
- Damaged TP sensor.
- Throttle plate below closed throttle position.
- Damaged PCM.

- Visually inspect the throttle linkage and throttle plate for binding or sticking.

- Verify the throttle plate and linkage is at closed throttle position.

- Does the throttle move freely and return to closed throttle position?

YES -- Throttle plate and linkage are OK.

For DTC 1124: Go to DH5. DH5 - DTC 0123: Generate Opposite DTC 0122

For DTC 1120: Go to DH3. DH3 - Check For Stuck TP Sensor

NO -- SERVICE as necessary. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes