DTC Troubleshooting: P0980 (22-4)

DTC P0980:
 Open in Shift Solenoid Valve C Circuit
NOTE:
  1. Clear the DTC with the HDS.
  1. Start the engine in the P position.
  1. Check that DTC P0980 recurs.
Is DTC P0980 indicated?
YES -
Go to Step 7 .
NO -
Go to Step 4 .
  1. Choose Shift Solenoid C in Miscellaneous Test Menu, and test the shift solenoid valve C with the HDS.
  1. Start the engine in the P position.
  1. Monitor the OBD status for P0980 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate a fail?
YES -
Go to Step 7 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the shift solenoid valve C and PCM. If the tester indicates NOT COMPLETE, return to Step 4 and recheck.■
  1. Turn the ignition switch OFF.
  1. Jump the SCS line with the HDS.
  1. Disconnect PCM connectors A (31P) and C (22P).
  1. Measure the resistance between PCM connector terminals C2 and A8 or A9.
Is there 12−25 Ω?
YES -
Check for loose or poor connections at PCM connector terminal C2. If the connection is OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM .■
NO -
Go to Step 11 .
  1. Disconnect the shift solenoid harness connector at the transmission housing.

  1. Measure the resistance between shift solenoid harness connector terminal No. 1 and body ground.
Is there 12−25 Ω?
YES -
Repair open in the wire between PCM connector terminal C2 and the shift solenoid harness connector, then go to Step 13 .
NO -
Check shift solenoid valve C, and check for an open in the shift solenoid harness in the transmission. Replace shift solenoid valve C and/or shift solenoid harness, then go to Step 13 .
  1. Clear the DTC with the HDS.
  1. Start the engine in the P position.
  1. Monitor the OBD status for P0980 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate a pass?
YES -
The problem has been corrected.■
NO -
Return to Step 1 and recheck.■