DTC P2764:00 [TCM (SJ6A-EL)]

id0502o1824400

DTC P2764:00

TCC control solenoid signal: Open/short circuit

DETECTION CONDITION

•  Vehicle condition: TCM normal during engine rotation

•  Status: Detects open circuit or short to ground in pressure control solenoid signal system

•  Period: Confirmed 5 times in 0.1 s or more

FAIL-SAFE FUNCTION

•  Inhibits learning control.

•  Inhibits the TCC control and slip control.

•  Inhibits the neutral control.

•  Inhibits the i-stop control.

•  Inhibits accelerating from 2GR.

POSSIBLE CAUSE

•  TCM connector or terminal malfunction

•  Coupler component connector or terminal malfunction

•  TCC control solenoid connector or terminal malfunction

•  Short to ground in wiring harness between TCC control solenoid terminal B and TCM terminal 2Q

•  Short to ground in wiring harness between TCC control solenoid terminal A and TCM terminal 2D

•  Open circuit between TCC control solenoid terminal B and TCM terminal 2Q

•  Open circuit between TCC control solenoid terminal A and TCM terminal 2D

•  TCC control solenoid malfunction

•  TCM malfunction

DTC P2764:00	TCC control solenoid signal: Open/short circuit
DETECTION CONDITION	• Vehicle condition: TCM normal during engine rotation • Status: Detects open circuit or short to ground in pressure control solenoid signal system • Period: Confirmed 5 times in 0.1 s or more
FAIL-SAFE FUNCTION	• Inhibits learning control. • Inhibits the TCC control and slip control. • Inhibits the neutral control. • Inhibits the i-stop control. • Inhibits accelerating from 2GR.
POSSIBLE CAUSE	• TCM connector or terminal malfunction • Coupler component connector or terminal malfunction • TCC control solenoid connector or terminal malfunction • Short to ground in wiring harness between TCC control solenoid terminal B and TCM terminal 2Q • Short to ground in wiring harness between TCC control solenoid terminal A and TCM terminal 2D • Open circuit between TCC control solenoid terminal B and TCM terminal 2Q • Open circuit between TCC control solenoid terminal A and TCM terminal 2D • TCC control solenoid malfunction • TCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture of the PC function. • Record the freeze frame data/snapshot 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 TCM CONNECTOR FOR POOR CONNECTION • Switch the ignition off. • Disconnect the TCM connector. • Inspect for poor connection at TCM terminals 2Q and 2D (such as damaged/pulled-out pins, corrosion). • Are terminals normal?	Yes	Go to the next step.
3		No	Repair or replace the connector and/or terminal, then go to Step 13.
4	INSPECT RESISTANCE OF TCC CONTROL SOLENOID CIRCUIT • Inspect for resistance between TCM terminals 2Q and 2D (wiring harness-side). • Is the resistance within 5.0—5.6 ohms?	Yes	Go to the next step.
4		No	Go to Step 7.
5	INSPECT TCC CONTROL SOLENOID CIRCUIT FOR SHORT TO GROUND • Disconnect the coupler component connector. • Inspect for continuity between TCM terminals (wiring harness-side) and body ground. ― Terminal 2Q and body ground ― Terminal 2D and body ground • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • TCC control solenoid terminal B—TCM terminal 2Q • TCC control solenoid terminal A—TCM terminal 2D 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 13.
5		No	Go to the next step.
6	INSPECT TCC CONTROL SOLENOID CIRCUIT FOR SHORT TO GROUND • Inspect for continuity between coupler component terminals (wiring harness-side) and body ground. ― Terminal H and body ground ― Terminal G and body ground • Is there continuity?	Yes	Repair or replace the coupler component, then go to Step 13.
6		No	Go to Step 13.
7	INSPECT COUPLER COMPONENT CONNECTOR FOR POOR CONNECTION • Switch the ignition off. • Disconnect the coupler component connector. • Inspect for poor connection at coupler component terminals H and G (such as damaged/pulled-out pins, corrosion). • Are terminals normal?	Yes	Go to the next step.
7		No	Repair or replace the connector and/or terminal, then go to Step 13.
8	INSPECT RESISTANCE OF TCC CONTROL SOLENOID CIRCUIT • Inspect the resistance between coupler component (transmission case side) terminals H and G. • Is the resistance within 5.0—5.6 ohms? (See SOLENOID VALVE INSPECTION [SJ6A-EL].)	Yes	Go to the next step.
8		No	Go to Step 10.
9	INSPECT TCC CONTROL SOLENOID CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between TCM terminals and coupler component terminals (wiring harness-side). ― Terminal 2Q and terminal H ― Terminal 2D and terminal G • Is there continuity?	Yes	Go to Step 13.
9		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • TCM terminal 2Q—Coupler component terminal H • TCM terminal 2D—Coupler component terminal G 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 Step 13.
10	INSPECT TCC CONTROL SOLENOID CONNECTOR FOR POOR CONNECTION • Disconnect the TCC control solenoid connector. • Inspect for poor connection at TCC control solenoid terminals A and B (such as damaged/pulled-out pins, corrosion). • Are terminals normal?	Yes	Go to the next step.
10		No	Repair or replace the connector and/or terminal, then go to Step 13.
11	INSPECT TCC CONTROL SOLENOID • Inspect the TCC control solenoid. (See SOLENOID VALVE INSPECTION [SJ6A-EL].) • Is the TCC control solenoid normal?	Yes	Go to the next step.
11		No	Replace the control valve body, then go to Step 13. (See CONTROL VALVE BODY REMOVAL [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
12	INSPECT TCC CONTROL SOLENOID CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between coupler component terminals and TCC control solenoid terminals (wiring harness-side). ― Terminal H and terminal B ― Terminal G and terminal A • Is there continuity?	Yes	Go to the next step.
12		No	Repair or replace the coupler component, then go to the next step.
13	VERIFY SAME DTC IS NOT PRESENT • Always reconnect all disconnected connectors. • Clear the DTC using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Perform the following procedure to ensure that the DTC has been resolved: 1. Start the engine. 2. Warm-up the engine and transmission. 3. Drive the vehicle in D position and make sure that the gears shift smoothly from 1GR to 6GR. • Perform the DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].) • Is the same DTC present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [SJ6A-EL].)
13		No	Go to the next step.
14	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	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)
14		No	DTC troubleshooting completed.