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DTC P2797:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

DTC P2797:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

 id0502q98248r2

Outline

System malfunction location

Electric AT oil pump mechanical 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 P2796:00 and P0C2D:00 are not recorded.
Fail-safe
•  Inhibits i-stop control.
Possible cause
•  Electric AT oil pump malfunction
•  Short to ground or open circuit in electric AT oil pump power supply circuit

Diagnostic Procedure

Step

Inspection

Results

Action
1
VERIFY RELATED REPAIR INFORMATION OR SERVICE
•  Verify related Service Bulletins, on-line repair information, or Service Information availability.
•  Is any related information available?
Yes
Perform repair or diagnosis according to the available information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
INSPECT ELECTRIC AT OIL PUMP POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT
•  Verify that the electric AT oil pump connector is disconnected.
•  Switch the electric AT oil pump relay to ON using the simulation item AUX_RLY_B.
•  Measure the voltage at the electric AT oil pump terminal D (wiring harness-side).
•  Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification
REPLACE ELECTRIC AT OIL PUMP AND VERIFY THAT MALFUNCTION IS RESOLVED
•  Replace the electric AT oil pump.
•  Clear the DTC using the M-MDS.
•  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.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (ET6A-EL, ET6AX-EL) (E)].)
No
DTC troubleshooting completed.