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DTC P0712 [FS5A-EL]

id050221801300

DTC P0712 | Transaxle fluid temperature (TFT) sensor circuit malfunction (short to ground)
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DETECTION CONDITION | • If the TCM detects either of the following conditions for 150 s or more, the TCM determines that the TFT sensor circuit has a malfunction. - TFT sensor voltage 0.06 V or less and vehicle speed 20 km/h {12 mph} or more Diagnostic support note: • This is a continuous monitor (CCM). • The MIL illuminates if the TCM detects the above malfunction conditions during the first drive cycle. • The PENDING CODE is available if the TCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA is available. • The AT warning light illuminates. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE | • TFT sensor malfunction • Short to ground in wiring harness between TFT sensor and transaxle connector (primary) terminal E • Short to ground in wiring harness between TFT sensor and transaxle connector (primary) terminal H • Short to ground in wiring harness between transaxle connector (primary) terminal E and TCM terminal 2M • Damaged connectors between TFT sensor and TCM • TCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 | VERIFY CURRENT INPUT SIGNAL STATUS • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at TCM terminal 2M. • Is the voltage 0.06 V or more? | Yes | Go to the intermittent concern troubleshooting procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L8, LF, L3].)
No | Go to the next step.
4 | INSPECT TERMINAL CONDITION • Turn the ignition switch to the LOCK position. • Disconnect the transaxle connector (primary). • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Are the terminals bent? | Yes | Repair or replace the terminals, then go to Step 8. • If the terminals cannot be repaired, replace the wiring harness, then go to Step 8.
No | Go to the next step.
5 | INSPECT TFT SENSOR CIRCUIT • Turn the ignition switch to the ON position (engine off). • Verify that the voltage changes to 4.67 V or more at TCM terminal 2M when transaxle connector (primary) is disconnected. • Does the voltage change? | Yes | Go to the next step.
No | Go to Step 8.
6 | INSPECT TFT SENSOR CIRCUIT FOR SHORT TO GROUND • Inspect for continuity between transaxle connector (primary) terminals (transaxle case side) and body ground. - E and body ground - H and body ground • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 8.
No | Replace the TFT sensor, then go to Step 8. (See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION [FS5A-EL].)
7 | INSPECT TRANSAXLE CONNECTOR CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Inspect for continuity between transaxle connector (primary) terminal E (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness, then go to the next step.
No | Go to the next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0712 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Drive the vehicle under the following condition for 150 s or more. - Vehicle speed (VSS PID) 20 km/h {12 mph} or more. • Is the same DTC present? | Yes | Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)
No | Go to the next step.
9 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FS5A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.