Code P039, TCC Engagement Problem: Action
PCM turns on MIL. TCC disabled for the entire ignition cycle.
NOTE:
Test number refers to number on diagnostic chart.
- Testing TCC brake switch input to PCM PI71. If test passes, display will change from HI 0 to HI X. If test fails, display will not change.
- Checks for open in circuit No. 420 between TCC solenoid and TCC brake switch connectors.
- Checks for open or short inside transaxle. Resistance should be 10-40 ohms.
- Checks if circuit No. 422 is open or if PCM in unable to control output.
- Checks PCM's ability to control TCC output.
- Checks if TCC is operating correctly by checking amount of TCC slip when clutch is engaged.