Home

< Previous   Next >

2008 - MX-5 - Transmission/Transaxle

DTC P0707 [SJ6A-EL]



DTC P0707

Transmission range (TR) switch circuit low input (short to ground)

DETECTION CONDITION

  • TR switch position voltage input to TCM is less than 0.127 V when ignition switch is at ON position.

    Diagnostic support note:
  • The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

  • A PENDING CODE is not available.

  • FREEZE FRAME DATA is available.

  • MIL does not illuminate.

  • The DTC is stored in the TCM memory.

POSSIBLE CAUSE

  • TR switch malfunction

  • TR switch misadjustment

  • Short to ground in wiring harness between TR switch terminal B and TCM terminal 2O

  • Short to ground in wiring harness between TR switch terminal C and TCM terminal 2M

  • Short to ground in wiring harness between TR switch terminal H and TCM terminal 2N

  • Short to ground in wiring harness between TR switch terminal D and TCM terminal 2K

  • Open circuit in wiring harness between TR switch terminal B and TCM terminal 2O

  • Open circuit in wiring harness between TR switch terminal C and TCM terminal 2M

  • Open circuit in wiring harness between TR switch terminal H and TCM terminal 2N

  • Open circuit in wiring harness between TR switch terminal D and TCM terminal 2K

  • Open circuit in wiring harness between TR switch terminal E and ignition switch (IG1)

  • Short to ground in wiring harness between TR switch terminal E and ignition switch (IG1)

  • Damaged connector between TR switch and TCM

  • TCM malfunction


Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
  • 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 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

Replace the TCM, then go to the next step.

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

3

INSPECT TR SWITCH CIRCUIT
  • Connect the TCM connector.

  • Turn the ignition switch to the ON position. (engine off)

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

    • TCM terminal 2O

      • P position: B+

      • Other positions and all ranges: 0V

    • TCM terminal 2M

      • R position: B+

      • Other position and all ranges: 0V

    • TCM terminal 2N

      • N position: B+

      • Other position and all range: 0V

    • TCM terminal 2K

      • D range: B+

      • Other ranges and all positions: 0V

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

Yes

Go to Step 13.

No

Go to the next step.

4

INSPECT TR SWITCH CIRCUIT
  • Are all terminal voltage 0 V in Step 3?

Yes

Go to Step 10.

No

Go to the next step.

5

INSPECT TR SWITCH CIRCUIT
  • Are there two or more terminals where the voltage is abnormal in Step 3?

Yes

Adjust the TR switch, then go to Step 13.

(See TRANSMISSION RANGE (TR) SWITCH ADJUSTMENT [SJ6A-EL].)

No

Go to the next step.

6

INSPECT TCM CONNECTOR FOR POOR CONNECTION

  • Turn the ignition switch to the LOCK position.

  • Disconnect the TCM connector.

  • Inspect for poor connection at TCM terminals 2O, 2K, 2M and 2N (such as damaged/pulled-out pins, corrosion).

  • Is there any malfunction?

Yes

Repair or replace the connector and/or terminal, then go to Step 13.

No

Go to the next step.

7

INSPECT TR SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND

  • Inspect for continuity between TR switch terminals (wiring harness-side) and body ground.

    • P position: B and body ground

    • R position: C and body ground

    • N position: H and body ground

    • D range: D and body ground

  • Is there continuity?

Yes

Repair or replace the wiring harness for short to ground, go to Step 12.

No

Go to the next step.

8

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 13.

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

9

INSPECT TR SWITCH

Yes

Repair or replace the wiring harness for open circuit, then go to Step 13.

No

Replace the TR switch, then go to Step 13.

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

10

INSPECT TR SWITCH POWER CIRCUIT FOR OPEN CIRCUIT
  • Turn the ignition switch to the LOCK position.

  • Disconnect the TR switch connector.

  • Turn the ignition switch to the ON position (engine off).

  • Inspect the voltage at TR switch (wiring harness-side) terminal E.

  • Is there B+ at TR switch (wiring harness-side) terminal E?

Yes

Go to the next step.

No

Inspect the METER 15A fuse.

  • If normal, repair or replace the wiring harness, then go to Step 13.

11

INSPECT TR SWITCH CONNECTOR FOR POOR CONNECTION

  • Disconnect the TR switch connector.

  • Inspect for poor connection at TR switch terminal E (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 13.

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

12

INSPECT TR SWITCH

Yes

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].)

13

VERIFY TROUBLESHOOTING OF DTC P0707 COMPLETED
  • Make sure to reconnect all the disconnected connectors.

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

  • Drive the vehicle in each range (P—D).

  • 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.

14

VERIFY AFTER REPAIR PROCEDURE
  • Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SJ6A-EL].)

No

Troubleshooting completed.




< Previous   Next >
Back to Top
© 2009 Mazda North American Operations, U.S.A.