Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

1, 2 and 3 Digit Codes: 29

Name
Code No. 29 Throttle position signal

Description
Throttle angle less than 6 degrees or Throttle angle greater than 120.6 degrees.

Probable cause
- Malfunction of throttle position sensor
- Harness or connector between throttle position sensor and TCM open or short-circuited
- Harness or connector between throttle position sensor output and TCM open or short-circuited
- Harness or connector between throttle position sensor output and ECM open-circuited
- Malfunction of TCM
- Malfunction of ECM





Diagnosis