#
DTC P0706 [FN4A-EL]

BME050201030207

DTC P0706 | Transaxle range (TR) switch circuit malfunction (open circuit)
--- | ---
DETECTION CONDITION | • If all conditions below are satisfied and 100 s or more have passed, the PCM determines that there is a malfunction.

  - Signal from D, S, L range and R range switch is not input.
  - Engine speed 530 rpm or more.
  - Vehicle speed 20 km/h {12 mph} or more.

Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during two consecutive drive cycles.
• The PENDING CODE is available.
• FREEZE FRAME DATA is available.
• The HOLD indicator light flashes.
• The DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Charging system malfunction • TR switch malfunction • TR switch misadjustment • Open circuit between TR switch terminal C and PCM terminal 3E • Open circuit between TR switch terminal G and PCM terminal 3H
• Open circuit between TR switch terminal F and PCM terminal 3K
• Open circuit between TR switch terminal E and PCM terminal 3N
• Open circuit between TR switch terminal I and dash harness (JB-04) terminals
• Damaged connectors between TR switch and PCM
• PCM 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 | Go to the next step.
3 | INSPECT TR SWITCH FOR OPEN • Turn the ignition switch to the LOCK position. • Disconnect the TR switch connector. • Inspect for continuity between the TR switch (part-side) terminals.

  - R range: I and C
  - D range: I and G
  - S range: I and F
  - L range: I and E

• Is there continuity between the TR switch (part-side) terminals?
(See TRANSAXLE RANGE (TR) SWITCH INSPECTION [FN4A-EL].)
Yes
Go to the next step.
No | Replace the TR switch, then go to Step 7. (See TRANSAXLE RANGE (TR) SWITCH REMOVAL/INSTALLATION [FN4A-EL].)
4 | INSPECT TR SWITCH POWER CIRCUIT FOR OPEN • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at TR switch (wiring harness-side) terminal I. • Is there B+ at TR switch (wiring harness-side) terminal I? | Yes | Go to the next step.
No | Inspect the main fuse. • If normal, repair or replace the wiring harness, then go to Step 7.
5 | 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). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 7.
6 | INSPECT TR SWITCH SIGNAL CIRCUIT FOR OPEN • Inspect for continuity between TR switch (wiring harness-side) terminals and PCM (wiring harness-side) terminals.

  - R range: C to 3E
  - D range: G to 3H
  - S range: F to 3K
  - L range: E to 3N

• Is there continuity?
Yes
Go to the next step.
No | Repair or replace the wiring harness, then go to the next step.
7 | VERIFY TROUBLESHOOTING OF DTC P0706 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Drive the vehicle in each range (D, S, L, and R) for 100 s or more under following conditions.

  - Engine speed (RPM PID) 530 rpm or more
  - Vehicle speed (VSS PID) 20 km/h {12 mph} or more

• Is the PENDING CODE present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | No concern is detected. Go to the next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [FN4A-EL].)
No | DTC troubleshooting completed.