DTC P0819

Manual switch/up switch/down switch circuit malfunction (open circuit/short circuit)

DETECTION CONDITION

M range switch circuit malfunction

• M range switch remains on for 2 s or more except in D range.

Up switch or down switch circuit malfunction

• When all of the following conditions are met:

• M range switch off.

• Except D range

• Up or down switch remains on for 10 s or more.

Diagnostic support note:

• The MIL does not illuminate if the TCM detects the above malfunction condition during the first drive cycle.

• A PENDING CODE is not available.

• FREEZE FRAME DATA is available.

• The AT warning light illuminates.

• The DTC is stored in the TCM memory.

POSSIBLE CAUSE

• M range switch malfunction

• Up switch malfunction

• Down switch malfunction.

• Open circuit in wiring harness between selector lever component terminal D and TCM terminal 2J

• Open circuit in wiring harness between selector lever component terminal F and TCM terminal 2F

• Open circuit in wiring harness between selector lever component terminal B and TCM terminal 2G

• Open circuit in wiring harness between selector lever component terminal A and ground

• Short to ground in wiring harness between selector lever component terminal D and TCM terminal 2J

• Short to ground in wiring harness between selector lever component terminal F and TCM terminal 2F

• Short to ground in wiring harness between selector lever component terminal Band TCM terminal 2G

• Damaged connector between selector lever component and TCM

• TCM malfunction

STEP

INSPECTION

ACTION

1

• Has the FREEZE FRAME DATA been recorded?

Yes

Go to the next step.

No

Record the FREEZE FRAME DATA on the repair order, then go to the next step.

2

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

3

• Disconnect the TCM connector.

• Inspect for poor connection at TCM terminals 2F, 2G and 2J (such as damaged/pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Repair or replace the connector and/or terminal, then go to Step 9.

4

• Disconnect the selector lever component connector.

• Inspect for poor connection at selector lever component terminals A, B, D and F (such as damaged/pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Repair or replace the connector and/or terminal, then go to Step 9.

5

• Inspect for continuity between selector lever component terminals (wiring harness-side) and body ground.

• Terminal B and body ground (M range switch)

• Terminal D and body ground (up switch)

• Terminal F and body ground (down switch)

• Is there continuity?

Yes

Repair or replace the harness, then go to Step 9.

No

Go to the next step.

6

INSPECT M RANGE SWITCH, UP SWITCH, AND DOWN SWITCH

• Inspect the M range switch, up switch, and down switch.

  (See SELECTOR LEVER INSPECTION)

• Are the switches normal?

Yes

Go to the next step.

No

Replace the selector lever, then go to Step 9.

(See SELECTOR LEVER REMOVAL/INSTALLATION.)

7

• Inspect for continuity between selector lever component terminal A (wiring harness-side) and body ground.

• Is there continuity?

Yes

Go to the next step.

No

Repair or replace the harness, then go to Step 9.

8

• Inspect for continuity between TCM terminals (wiring harness-side) and selector lever component terminals (wiring harness-side).

• Terminal 2G and terminal B (M range switch)

• Terminal 2J and terminal D (up switch)

• Terminal 2F and terminal F (down switch)

• Is there continuity?

Yes

Go to the next step.

No

Repair or replace the harness, then go to the next step.

9

• Make sure to reconnect all the disconnected connectors.

• Clear the DTC from the memory using the M-MDS.

• Drive the vehicle in M range, and change gears by shifting the selector lever (operating the up and down switches).

• Is same DTC present?

Yes

Replace the TCM, then go to the next step.

(See TCM REMOVAL/INSTALLATION [SJ6A-EL].)

No

Go to the next step.

10

• Perform the “After Repair Procedure”.

  (See AFTER REPAIR PROCEDURE [SJ6A-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SJ6A-EL].)

No

Troubleshooting completed.