DTC P1124: Throttle Position (TP) Sensor: Condition

DTC P1124 indicates TP sensor rotational setting may be out of self-test range. Possible causes for this fault are:

• Faulty TP sensor.
• Faulty Powertrain Control Module (PCM).

Normal range of throttle angle measurement for TP sensor is 0-85 degrees. To pass quick test procedure, range of throttle rotation (in degrees) must be within 3 percent of specification.

To prevent replacement of good components, be aware, the following areas may be at fault:

• Idle speed.
• Binding throttle shaft or linkage.
• TP sensor not seated.

1. Check For Other DTCs
   
   Perform KOEO and KOER self-test. Check for DTC P1400. If DTC P1400 is also present, service that code and repeat QUICK TEST. See TESTS W/CODES - INTRODUCTION article. If DTC P1400 is not present with DTC P1124, go to next step.
2. Check For Binding Throttle Plate
   
   Inspect throttle body for binding. If throttle body is binding, check for binding throttle or cruise control linkage, vacuum line or harness interference. Repair as necessary, and repeat QUICK TEST. See TESTS W/CODES - INTRODUCTION article. If no mechanical problem is found, throttle plate and linkage are okay.