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DTC P0706

BHE050201026W07

DTC P0706 | Transmission range (TR) switch circuit malfunction (open circuit/short to ground)
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DETECTION CONDITION | • No range signal is input from the TR switch for 100 s or more. Diagnostic support note: • This is a continuous monitor (CCM). • MIL illuminates if TCM detects the above malfunction condition in two consecutive drive cycles. • PENDING CODE is available. • FREEZE FRAME DATA is available. • AT warning light illuminates. • DTC is stored in TCM memory.
POSSIBLE CAUSE | • TR switch malfunction • TR switch misadjustment • Short to ground in wiring harness between TR switch terminal A and TCM terminal 1D • Short to ground in wiring harness between TR switch terminal E and TCM terminal 2C • Short to ground in wiring harness between TR switch terminal D and TCM terminal 2B • Short to ground in wiring harness between TR switch terminal G and TCM terminal 2E • Open circuit in wiring harness between TR switch terminal A and TCM terminal 1D • Open circuit in wiring harness between TR switch terminal E and TCM terminal 2C • Open circuit in wiring harness between TR switch terminal D and TCM terminal 2B • Open circuit in wiring harness between TR switch terminal G and TCM terminal 2E • Open circuit in wiring harness between TR switch terminal C and ignition switch (IG1) • Short to ground between TR switch terminal C and ignition switch (IG1) • Damaged connector between TR switch and TCM • TCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 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 connector and terminals normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminal, then go to Step 13.
4 | INSPECT TR SWITCH CIRCUIT • Disconnect the TCM connector. • Turn the ignition switch to the ON position (engine off). • Inspect each TCM (wiring harness-side) terminal voltage. – 1D • P position: B+ • Other positions and all ranges: 0 V – 2C • R position: B+ • Other position and all ranges: 0 V – 2B • N position: B+ • Other position and all range: 0 V – 2E • D range: B+ • Other ranges and all positions: 0 V • Are the above voltage indicated when the selector lever is shifted from P position to D range? | Yes | • Turn the ignition switch to the LOCK position. • Connect the TCM connector. • Go to the intermittent concern troubleshooting procedure, then go to Step 13. (See INTERMITTENT CONCERN TROUBLESHOOTING.)
No | Go to the next step.
5 | INSPECT TR SWITCH CIRCUIT • Are all terminal voltage 0 V in Step 4? | Yes | Go to Step 10.
No | Go to the next step.
6 | INSPECT TR SWITCH CIRCUIT • Are there two or more terminals where the voltage is abnormal in Step 4? | Yes | Adjust the TR switch, then go to Step 13. (See TRANSMISSION RANGE (TR) SWITCH ADJUSTMENT.)
No | Go to the next step.
7 | 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 connector and terminals normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminal, then go to Step 13.
8 | INSPECT TR SWITCH CIRCUIT FOR SHORT TO GROUND • Disconnect the TR switch connector. • Inspect for continuity between the TCM (wiring harness-side) and body ground. – P position: terminal 1D and body ground – R position: terminal 2C and body ground – N position: terminal 2B and body ground – D range: terminal 2E and body ground • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 13.
No | Go to the next step.
9 | INSPECT TR SWITCH CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between the TR switch (wiring harness-side) and TCM (wiring harness-side). – P position: terminal A and terminal 1D – R position: terminal E and terminal 2C – N position: terminal D and terminal 2B – D range: terminal G and terminal 2E • Is there continuity? | Yes | Go to Step 12.
No | Repair or replace the wiring harness, then go to Step 13.
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 C. • Is there B+ at TR switch (wiring harness-side) terminal C? | Yes | Go to the next step.
No | Inspect the main fuse. • If normal, repair or replace the wiring harness, then go to Step 13.
11 | 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 connector and terminals normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminal, then go to Step 13.
12 | INSPECT TR SWITCH • Inspect the TR switch. (See TRANSMISSION RANGE (TR) SWITCH INSPECTION.) • Is the TR switch normal? | Yes | Go to the next step.
No | Replace the TR switch, then go to the next step. (See TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION.)
13 | 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. • Turn the ignition switch to the START position (engine on). • Drive the vehicle in each range (P, R, N, and D) for 100 s or more. • Is the same DTC present? | Yes | Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION.)
No | Go to the next step.
14 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [RC4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [RC4A-EL].)
No | DTC troubleshooting completed.