DTC P0706 [JA5A-EL]


BME050218901206

DTC P0706

Transaxle range (TR) switch circuit malfunction (open/ground short circuit)

DETECTION CONDITION

• If no range signal is input from the TR switch for 100 s or more, the TCM determines that there is a malfunction.
Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the TCM detects the above malfunction conditions in two consecutive drive cycles.
• PENDING CODE is available.
• FREEZE FRAME DATA is available.
• The HOLD indicator light flashes.
• 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 A and TCM terminal 2B
• Short to ground in wiring harness between TR switch terminal E and TCM terminal 1W
• Short to ground in wiring harness between TR switch terminal D and TCM terminal 1T
• Short to ground in wiring harness between TR switch terminal G and TCM terminal 1Z
• Short to ground in wiring harness between TR switch terminal I and TCM terminal 1AA
• Short to ground in wiring harness between TR switch terminal F and TCM terminal 2C
• Open circuit in wiring harness between TR switch terminal A and TCM terminal 2B
• Open circuit in wiring harness between TR switch terminal E and TCM terminal 1W
• Open circuit in wiring harness between TR switch terminal D and TCM terminal 1T
• Open circuit in wiring harness between TR switch terminal G and TCM terminal 1Z
• Open circuit in wiring harness between TR switch terminal I and TCM terminal 1AA
• Open circuit in wiring harness between TR switch terminal F and TCM terminal 2C
• Open circuit in wiring harness between TR switch terminal C and IG key (ACC)
• Short to ground in wiring harness between TR switch terminal C and IG key (ACC)
• Damaged connector between TR switch and TCM
• TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME PID 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
Go to the next step.
3
INSPECT TCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Are the terminals normal?
Yes
Go to the next step.
No
Repair the terminals, then go to Step 12.
4
INSPECT TR SWITCH CIRCUIT
• Inspect the TCM terminal voltage.
- TCM terminal 2B
• P position: B+
• Other positions and all ranges: 0V
- TCM terminal 1W
• R position: B+
• Other position and all ranges: 0V
- TCM terminal 1T
• N position: B+
• Other position and all range: 0V
- TCM terminal 1Z
• D range: B+
• Other ranges and all positions: 0V
- TCM terminal 1AA
• S range: B+
• Other ranges and all positions: 0V
- TCM terminal 2C
• L range: B+
• Other ranges and all positions: 0V
• Are any of the following terminal voltage turned on for even a moment while shifting the selector lever slowly from the P position to L range?
Yes
Adjust the TR switch, then go to Step 12.
No
Go to the next step.
5
INSPECT TR SWITCH CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Are the terminals normal?
Yes
Go to the next step.
No
Repair the terminals, then go to Step 12.
6
INSPECT TR SWITCH CIRCUIT
• Disconnect the TR switch connector.
• Turn the ignition switch to the ON position (engine off).
• Connect the wiring harness-side connector power line and signal line using a jumper wire
- P position: C and A
- R position: C and E
- N position: C and D
- D range: C and G
- S range: C and I
- L range: C and F
• Inspect if the terminal voltage changes.
- 0 V to B+
• Does the terminal voltage change?
Yes
Go to the next step.
No
Go to Step 9.
7
INSPECT TR SWITCH FOR OPEN CIRCUIT
• Turn the ignition switch to the LOCK position.
• Inspect for continuity between TR switch terminals (part side).
- P position: C and A
- R position: C and E
- N position: C and D
- D range: C and G
- S range: C and I
- L range: C and F
• Is there continuity between TR switch terminals (part side)?
Yes
Go to Step 12.
No
Replace the TR switch, then go to Step 12.
8
INSPECT TR SWITCH POWER CIRCUIT FOR OPEN CIRCUIT
• Inspect the voltage at TR switch terminal C (wiring harness-side).
• Is there B+ at TR switch terminal C (wiring harness-side)?
Yes
Go to the next step.
No
Inspect the main fuse.
• If normal, repair or replace the wiring harness, then go to Step 12.
9
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch to the LOCK position.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Are the terminals normal?
Yes
Go to the next step.
No
Repair the terminals, then go to Step 12.
10
INSPECT TR SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between TR switch terminals (wiring harness-side) and TCM terminals (wiring harness-side).
- P position: A and 2B
- R position: E and 1W
- N position: D and 1T
- D range: G and 1Z
- S range: I and 1AA
- L range: F and 2C
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 12.
11
INSPECT TR SWITCH CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between TCM terminals (wiring harness-side) and body ground.
- P position: 2B and body ground
- R position: 1W and body ground
- N position: 1T and body ground
- D range: 1Z and body ground
- S range: 1AA and body ground
- L range: 2C and body ground
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to the next step.
12
VERIFY TROUBLESHOOTING OF DTC P0706 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the TCM memory using the WDS or equivalent.
• Drive the vehicle in each range (P, R, N, D, S, and L) for 100 s or more.
• Is there pending code?
Yes
Replace the TCM, then go to the next step.
No
Go to the next step.
13
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.