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DTC P0882 [FS5A-EL]

id050221802800

DTC P0882 | Battery back-up power supply circuit
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DETECTION CONDITION | • When the signal of the battery back-up power supply circuit is less than 2.5 V. Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate if the TCM detects the above malfunction condition 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 not illuminates. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE | • Melted ENG+B 10 A fuse • Open circuit in wiring harness between battery positive terminal and TCM terminal 1K • Short to ground in wiring harness between battery positive terminal and TCM terminal 1K • Poor connection of TCM connector • 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 | INSPECT FUSE • Turn the ignition switch to the LOCK position. • Inspect ENG+B 10 A fuse malfunction. • Is it normal? | Yes | Go to the next step.
No | • If fuse has been melted, go to the next step. • If fuse is not installed correctly, install it correctly, then go to Step 13.
4 | INSPECT VOLTAGE OF POWER SUPPLY CIRCUIT • Turn the ignition switch to the ON position (engine off). • Inspect for voltage TCM connector terminal 1K (wiring harness-side). • Is the voltage B+? | Yes | Go to the next step.
No | Go go to Step 6.
5 | INSPECT TERMINAL TCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the TCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Are terminals normal? | Yes | Go go to Step 8.
No | Replace the couple component, then go to Step 8.
6 | INSPECT POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Disconnect the positive battery cable. • Inspect for continuity between the TCM terminal 1K and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 8.
No | Go to the next step.
7 | INSPECT POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between TCM terminal 1K and ENG+B 10 A fuse terminal (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the harness, then go to the next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0882 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Start the engine and warm it up completely. • Is 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. (See DTC TABLE [FS5A-EL].)
No | Troubleshooting completed.