DTC P0819:00

M position switch/Up switch/Down switch signal error

DETECTION CONDITION

• Under the following conditions, any of (1) to (4) conditions occurs for 1 s:

• Engine is running.

• Battery voltage is 8 V or more.

• Transaxle range sensor related DTC is not recorded.

• (1) M position switch signal is on even though forward oil pressure switch is on in any position other than D position.

• (2) M position switch signal is off even though up or down switch signal is on in D position.

• (3) Up switch signal is on even though M position switch signal is off in any position other than D position.

• (4) Down switch signal is on even though M position switch signal is off in any position other than D position.

Diagnostic support note

• The check engine light does not illuminate.

• The automatic transaxle warning light does not illuminate.

• PENDING CODE is available.

• FREEZE FRAME DATA is not available.

• The DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Inhibits manual mode.

POSSIBLE CAUSE

• Instrument cluster DTC is stored.

• Selector lever component connector or terminals malfunction

• Selector lever component malfunction

• M position switch malfunction

• Up switch malfunction

• Down switch malfunction

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

• Instrument cluster connector or terminals malfunction

• Short to ground in wiring harness between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

• Short to power supply in wiring harness between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

• Open circuit in wiring harness between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

• Instrument cluster malfunction

STEP

INSPECTION

ACTION

1

• Verify related Service Information availability.

• Is any related Service Information available?

Yes

Perform repair or diagnosis according to the available Service Information.

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

No

Go to the next step.

2

• Perform the instrument cluster DTC inspection using the M-MDS.

  (See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

Go to the next step.

3

• Switch the ignition to off.

• Disconnect the selector lever component connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 11.

No

Go to the next step.

4

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

  (See M POSITION SWITCH INSPECTION [FW6A-EL].)

  (See UP SWITCH INSPECTION [FW6A-EL].)

  (See DOWN SWITCH INSPECTION [FW6A-EL].)

• Is there any malfunction?

Yes

Replace the selector lever component, then go to Step 11.

(See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION.)

No

Go to the next step.

5

• Verify that the selector lever component connector is disconnected.

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

• Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between selector lever component terminal J and body ground.

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has an open circuit.

Go to Step 11.

6

• Disconnect the instrument cluster connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 11.

No

Go to the next step.

7

• Verify that the selector lever component and instrument cluster connectors are disconnected.

• Inspect for continuity between the following terminals (wiring harness-side) and body ground:

• Selector lever component terminal E

• Selector lever component terminal C

• Selector lever component terminal D

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to ground.

Go to Step 11.

No

Go to the next step.

8

• Verify that the selector lever component and instrument cluster connectors are disconnected.

• Switch the ignition ON (engine on).

• Measure the voltage at the following terminals (wiring harness-side):

• Selector lever component terminal E

• Selector lever component terminal C

• Selector lever component terminal D

• Is the voltage 0 V?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to power supply.

Go to Step 11.

9

• Verify that the selector lever component and instrument cluster connectors are disconnected.

• Switch the ignition to off.

• Inspect for continuity between the following terminals (wiring harness-side):

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

• Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Selector lever component terminal E—Instrument cluster terminal H

• Selector lever component terminal C—Instrument cluster terminal F

• Selector lever component terminal D—Instrument cluster terminal G

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has an open circuit.

Go to Step 11.

10

• Inspect the instrument cluster.

  (See INSTRUMENT CLUSTER INSPECTION.)

• Is there any malfunction?

Yes

Replace the instrument cluster, then go to the next step.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

No

Go to the next step.

11

• Make sure to reconnect all disconnected connectors.

• Clear the DTC using the M-MDS.

  (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].)

• Perform the following procedure to ensure that the DTC has been resolved:

• Verify that the battery voltage is 8 V or more.

• Drive the vehicle for 1 s or more under the following condition:

• Selector lever position: Except D position

• Drive the vehicle for 1 s or more under the following conditions:

• Selector lever position: D position

• Up switch: On

• Drive the vehicle for 1 s or more under the following conditions:

• Selector lever position: D position

• Down switch: On

• Perform the DTC inspection using the M-MDS.

  (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FW6A-EL].)

No

DTC troubleshooting completed.