DTC P0C2C:00 [FW6A-EL]
id050225832600
DTC P0C2C:00 |
Electric AT oil pump rotation malfunction |
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DETECTION CONDITION
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• The actual electric AT oil pump rotation speed under the following condition is 100 rpm or less for a continuous 10 s:
Diagnostic support note
• The MIL does not illuminate.
• The AT warning light does not illuminate.
• PENDING CODE is available.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the TCM memory.
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FAIL-SAFE FUNCTION
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• Inhibits i-stop control.
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POSSIBLE CAUSE
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• Electric AT oil pump connector or terminals malfunction
• TCM connector or terminals malfunction
• Short to ground in wiring harness between electric AT oil pump terminal B and TCM terminal 1N
• Short to power supply in wiring harness between electric AT oil pump terminal B and TCM terminal 1N
• Open circuit in wiring harness between electric AT oil pump terminal B and TCM terminal 1N
• Electric AT oil pump malfunction
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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2
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INSPECT ELECTRIC AT OIL PUMP CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the electric AT oil pump connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector and/or terminals, then go to Step 7.
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No
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Go to the next step.
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3
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INSPECT TCM CONNECTOR CONDITION
• Disconnect the TCM connector.
• Visually inspect the TCM connector and terminals.
• Is there any malfunction?
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Yes
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Repair or replace the connector and/or terminals, then go to Step 7.
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No
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Go to the next step.
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4
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INSPECT ELECTRIC AT OIL PUMP CIRCUIT FOR SHORT TO GROUND
• Verify that the electric AT oil pump and TCM connectors are disconnected.
• Inspect for continuity between electric AT oil pump terminal B (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Repair or replace the wiring harness for a possible short to ground, then go to Step 7.
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No
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Go to the next step.
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5
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INSPECT ELECTRIC AT OIL PUMP CIRCUIT FOR SHORT TO POWER SUPPLY
• Verify that the electric AT oil pump and TCM connectors are disconnected.
• Switch the ignition to ON.
• Measure the voltage at the electric AT oil pump terminal B (wiring harness-side).
• Is there any voltage?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
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No
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Go to the next step.
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6
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INSPECT ELECTRIC AT OIL PUMP CIRCUIT FOR OPEN CIRCUIT
• Verify that the electric AT oil pump and TCM connectors are disconnected.
• Switch the ignition to off.
• Visually inspect the wiring harness between electric AT oil pump terminal B (wiring harness-side) and TCM terminal 1N (wiring harness-side).
• Is there any malfunction?
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Yes
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Repair or replace the wiring harness for a possible open circuit, then go to the next step.
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No
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Replace the electric AT oil pump, then go to the next step.
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7
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC using the M-MDS.
• Perform the following procedure to ensure that the DTC has been resolved:
• Perform the DTC inspection using the M-MDS.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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