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DTC P0707:00 [TCM (SJ6A-EL)]

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2016 – MX-5 – Transmission/Transaxle

DTC P0707:00 [TCM (SJ6A-EL)]

DTC P0707:00

TR switch: Short circuit

DETECTION CONDITION

  • Vehicle condition: TCM normal during engine rotation

  • Status: Detects TR switch multiple input

  • Period: Confirmed 5 times in 2 s or more

FAIL-SAFE FUNCTION

  • When multiple position contact points are on, the selected position is determined by the following order of priority.

    • D>R>N (P)

  • When all of the position contact points are off, the D position is determined.

  • Inhibits learning control.

  • Inhibits direct mode.

  • Inhibits AAS mode.

  • Inhibits the neutral control.

POSSIBLE CAUSE

  • Short to ground in wiring harness between TR switch terminal B and TCM terminal 1O

  • Short to ground in wiring harness between TR switch terminal C and TCM terminal 1M

  • Short to ground in wiring harness between TR switch terminal H and TCM terminal 1N

  • Short to ground in wiring harness between TR switch terminal D and TCM terminal 1K

  • TCM connector or terminal malfunction

  • TR switch connector or terminal malfunction

  • TR switch malfunction

  • TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

NOTE:

  • Recording can be facilitated using the screen capture of the PC function.

  • Record the freeze frame data/snap shot data.

Go to the next step.

2

VERIFY RELATED REPAIR INFORMATION AVAILABILITY

  • 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

INSPECT TR SWITCH CIRCUIT

  • Connect the TCM connector.

  • Switch the ignition ON (engine off).

  • Inspect the voltage between TCM terminal (wiring harness-side) and body ground.

    • TCM terminal 1O

      • P position: 0 V

      • Other position: B+

    • TCM terminal 1M

      • R position: 0 V

      • Other position: B+

    • TCM terminal 1N

      • N position: 0 V

      • Other position: B+

    • TCM terminal 1K

      • D position: 0 V

      • Other position: B+

  • Are any of following terminal voltage turned on for even a moment while shifting selector lever slowly from P to D position?

Yes

Go to Step 8.

No

Go to the next step.

4

INSPECT TR SWITCH CIRCUIT

  • Are all terminal voltage 0 V in Step 3?

Yes

Go to Step 8.

No

Go to the next step.

5

INSPECT TCM CONNECTOR FOR POOR CONNECTION

  • Switch the ignition off.

  • Disconnect the TCM connector.

  • Inspect for poor connection at TCM terminals 1O, 1K, 1M and 1N (such as damaged/pulled-out pins, corrosion).

  • Is there any malfunction?

Yes

Repair or replace the connector and/or terminal, then go to Step 8.

No

Go to the next step.

6

INSPECT TR SWITCH CONNECTOR FOR POOR CONNECTION

  • Disconnect the TR switch connector.

  • Inspect for poor connection at TR switch terminals B, C, D and H (part-side) (such as damaged/pulled-out pins, corrosion)

  • Are TR switch terminals normal?

Yes

Go to the next step.

No

Repair terminals or replace the TR switch, then go to Step 8.

(See TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION [SJ6A-EL].)

7

INSPECT TR SWITCH

Yes

Repair or replace the wiring harness for open circuit, then go to the next step.

No

Replace the TR switch, then go to the next step.

(See TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION [SJ6A-EL].)

8

VERIFY SAME DTC IS NOT PRESENT

Yes

Replace the TCM, then go to the next step.

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

No

Go to the next step.

9

VERIFY DTC TROUBLESHOOTING COMPLETED

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)

No

DTC troubleshooting completed.

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