DTC P2797:00 [TCM (SJ6A-EL)]

id0502o1824800

DTC P2797:00

Electric AT oil pump: Malfunction in electric AT oil pump function

DETECTION CONDITION

•  Vehicle condition: Returned to normal control from i-stop control

•  Status: Detected signal error

•  Period: Confirmed 5 times

FAIL-SAFE FUNCTION

•  Inhibits the i-stop control.

POSSIBLE CAUSE

•  Electric AT oil pump connector or terminal malfunction

•  Electric AT oil pump malfunction

•  TCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC P2797:00	Electric AT oil pump: Malfunction in electric AT oil pump function
DETECTION CONDITION	• Vehicle condition: Returned to normal control from i-stop control • Status: Detected signal error • Period: Confirmed 5 times
FAIL-SAFE FUNCTION	• Inhibits the i-stop control.
POSSIBLE CAUSE	• Electric AT oil pump connector or terminal malfunction • Electric AT oil pump malfunction • TCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

Note

•  Recording can be facilitated using the screen capture function of the PC.

•  Record the freeze frame data/snap shot data.

—

Go to the next step.

2

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.

No

Go to the next step.

3

INSPECT ELECTRIC AT OIL PUMP CONNECTOR

•  Switch the ignition off.

•  Disconnect the electric AT oil pump connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is there any malfunctioning location?

Yes

Repair or replace the connector/terminal, then go to Step 6.

No

Go to the next step.

4

INSPECT ELECTRIC AT OIL PUMP OPERATION SOUND

•  Start the engine and operate i-stop.

•  Verify the electric AT oil pump operation sound.

•  Can the operation sound be heard?

Yes

Go to the next step.

No

Replace the electric AT oil pump, then go to Step 6.

(See ELECTRIC AT OIL PUMP REMOVAL/INSTALLATION [SJ6A-EL].)

5

INSPECT ELECTRIC AT OIL PUMP HYDRAULIC PRESSURE

•  Inspect the hydraulic pressure of the electric AT oil pump.
(See ELECTRIC AT OIL PUMP INSPECTION [SJ6A-EL].)

•  Is the electric AT oil pump normal?

Yes

Go to the next step.

No

Replace the electric AT oil pump, then go to the next step.

(See ELECTRIC AT OIL PUMP REMOVAL/INSTALLATION [SJ6A-EL].)

6

VERIFY SAME DTC IS NOT PRESENT

•  Clear DTC for the TCM using the M-MDS.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

•  Perform the DTC inspection for the TCM using the M-MDS.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

•  Is the same DTC present?

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the TCM, then go to the next step.

(See TCM REMOVAL/INSTALLATION [SJ6A-EL].)

No

Go to the next step.

7

VERIFY DTC TROUBLESHOOTING COMPLETED

•  Clear the DTC using the M-MDS.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

•  Perform the DTC inspection using the M-MDS.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

•  Are any DTCs present?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture function of the PC. • Record the freeze frame data/snap shot data.	—	Go to the next step.
2	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.
2		No	Go to the next step.
3	INSPECT ELECTRIC AT OIL PUMP CONNECTOR • Switch the ignition off. • Disconnect the electric AT oil pump connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is there any malfunctioning location?	Yes	Repair or replace the connector/terminal, then go to Step 6.
3		No	Go to the next step.
4	INSPECT ELECTRIC AT OIL PUMP OPERATION SOUND • Start the engine and operate i-stop. • Verify the electric AT oil pump operation sound. • Can the operation sound be heard?	Yes	Go to the next step.
4		No	Replace the electric AT oil pump, then go to Step 6. (See ELECTRIC AT OIL PUMP REMOVAL/INSTALLATION [SJ6A-EL].)
5	INSPECT ELECTRIC AT OIL PUMP HYDRAULIC PRESSURE • Inspect the hydraulic pressure of the electric AT oil pump. (See ELECTRIC AT OIL PUMP INSPECTION [SJ6A-EL].) • Is the electric AT oil pump normal?	Yes	Go to the next step.
5		No	Replace the electric AT oil pump, then go to the next step. (See ELECTRIC AT OIL PUMP REMOVAL/INSTALLATION [SJ6A-EL].)
6	VERIFY SAME DTC IS NOT PRESENT • Clear DTC for the TCM using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Perform the DTC inspection for the TCM using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [SJ6A-EL].)
6		No	Go to the next step.
7	VERIFY DTC TROUBLESHOOTING COMPLETED • Clear the DTC using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Perform the DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Are any DTCs present?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)
7		No	DTC troubleshooting completed.