Code P029, Transaxle Shift Solenoid "B" Problem: Action
PCM turns on MIL. PCM commands 2nd gear when any forward gear is selected and garage shift adapts are maintained at current levels.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Checks if Code P117 is set.
- Checks if shift solenoid "B" is in high when it should be in low or vice-versa.
- Checks if PCM is operating correctly but setting false codes.
- Checks if circuit No. 741 is open.
- Checks if circuit No. 1223 is open (engine harness side).
- Checks for short to ground inside transaxle.
- Checks for open circuit inside transaxle.
- Checks circuit No. 1223 (transaxle harness side) for short to voltage inside transaxle.
- Checks circuit No. 1223 (engine harness side) for short to voltage from PCM connector.
- Possible causes of getting 4th gear when 1st gear is commanded.
- Possible causes of getting 3rd gear when 2nd gear is commanded.
- Possible causes of getting 2nd gear when 3rd gear is commanded.
- Possible causes of getting 1st gear when 4th gear is commanded.