DTC P0C2D:00 [FW6A-EL]

id050225832700

DTC P0C2D:00

Electric AT oil pump rotation malfunction

DETECTION CONDITION

•  The actual electric AT oil pump rotation speed under the following conditions is 100 rpm or less for a continuous 10 s:

―  Electric AT oil pump rotation speed command value is 500 rpm or more.

―  Electric AT oil pump relay is ON.

―  DTC P181F:00 is not recorded.

FAIL-SAFE FUNCTION

•  Inhibits i-stop control.

POSSIBLE CAUSE

•  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 N

•  Short to power supply in wiring harness between electric AT oil pump terminal B and TCM terminal N

•  Open circuit in wiring harness between electric AT oil pump terminal B and TCM terminal N

•  Electric AT oil pump malfunction

DTC P0C2D:00	Electric AT oil pump rotation malfunction
DETECTION CONDITION	• The actual electric AT oil pump rotation speed under the following conditions is 100 rpm or less for a continuous 10 s: ― Electric AT oil pump rotation speed command value is 500 rpm or more. ― Electric AT oil pump relay is ON. ― DTC P181F:00 is not recorded.
FAIL-SAFE FUNCTION	• Inhibits i-stop control.
POSSIBLE CAUSE	• 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 N • Short to power supply in wiring harness between electric AT oil pump terminal B and TCM terminal N • Open circuit in wiring harness between electric AT oil pump terminal B and TCM terminal N • Electric AT oil pump malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
1		No	Go to the next step.
2	INSPECT ELECTRIC AT OIL PUMP CONNECTOR CONDITION • Switch the ignition off. • Disconnect the electric AT oil pump connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 7.
2		No	Go to the next step.
3	INSPECT TCM CONNECTOR CONDITION • Disconnect the TCM connector. • Visually inspect the TCM connector and terminals. • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 7.
3		No	Go to the next step.
4	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?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between electric AT oil pump terminal B and TCM terminal N. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to ground. Go to Step 7.
4		No	Go to the next step.
5	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 ON (engine on). • Measure the voltage at the electric AT oil pump terminal B (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between electric AT oil pump terminal B and TCM terminal N. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to power supply. Go to Step 7.
6	INSPECT ELECTRIC AT OIL PUMP CIRCUIT FOR OPEN CIRCUIT • Verify that the electric AT oil pump and TCM connectors are disconnected. • Switch the ignition off. • Visually inspect the wiring harness between electric AT oil pump terminal B (wiring harness-side) and TCM terminal N (wiring harness-side). • Is there any malfunction?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between electric AT oil pump terminal B and TCM terminal N. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to the next step.
6		No	Replace the electric AT oil pump, then go to the next step. (See ELECTRIC AT OIL PUMP REMOVAL/INSTALLATION [FW6A-EL].)
7	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].) • Perform the following procedure to ensure that the DTC has been resolved: 1. Operate i-stop for 30 s or more. 2. Repeat Step 1 operation above 2 times. • Perform the DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FW6A-EL].)
7		No	DTC troubleshooting completed.