VSA DTC Troubleshooting: 83-11, 83-12

DTC 83-11: PCM (Engine) Malfunction
DTC 83-12: PCM (AT/CVT) Malfunction

NOTE:

	Troubleshoot any PGM-FI, AT or CVT DTCs first.
	Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshoot the VSA system.

DTC Description	DTC	Freeze Frame
83-11 PCM (Engine) Malfunction
83-12 PCM (AT/CVT) Malfunction

Problem verification:

Problem verification

?1.	Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.	Clear the DTC with the HDS.

?3.	Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?4.	Test-drive the vehicle. NOTE: Drive the vehicle on the road, not on a lift.

?5.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
83-11 PCM (Engine) Malfunction
83-12 PCM (AT/CVT) Malfunction

Is DTC 83-11 or 83-12 indicated?


	YES

The failure is duplicated. Go to step 2.


	NO

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.?

PCM check (update or substitution):

PCM check (update or substitution)

?1.	Update the PCM if it does not have the latest software, or substitute a known-good PCM.

?2.	Clear the DTC with the HDS.

?3.	Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?4.	Test-drive the vehicle. NOTE: Drive the vehicle on the road, not on a lift.

?5.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
83-11 PCM (Engine) Malfunction
83-12 PCM (AT/CVT) Malfunction

Is DTC 83-11 or 83-12 indicated?


	YES

Go to step 3.


	NO

If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM.?

VSA modulator-control unit check (update):

VSA modulator-control unit check (update)

?1.	Update the VSA modulator-control unit if it does not have the latest software.

?2.	Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?3.	Test-drive the vehicle. NOTE: Drive the vehicle on the road, not on a lift.

?4.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame

Is DTC 83-11 or 83-12 indicated?


	YES

Check for loose terminals in the VSA modulator-control unit 21P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit.?


	NO

Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.?