DTC P2720 [SJ6A-EL]


DTC P2720	Shift solenoid G circuit malfunction (short to ground/open circuit)
DETECTION CONDITION	• Open or short circuit in shift solenoid G signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). Diagnostic support note: • The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle. • A PENDING CODE is not available. • FREEZE FRAME DATA is available. • The AT warning light illuminates. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE	• Open circuit between shift solenoid G terminal B and TCM terminal 1Y • Open circuit between shift solenoid G terminal A and TCM terminal 1L • Short to ground in wiring harness between shift solenoid G terminal B and TCM terminal 1Y • Short to ground in wiring harness between shift solenoid G terminal A and TCM terminal 1L • Shift solenoid G malfunction • Damaged connector between shift solenoid G and TCM • TCM malfunction


STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair 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 • Turn the ignition switch to the LOCK position. • Disconnect the TCM connector. • Inspect for poor connection at TCM terminals 1Y and 1L (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 SHIFT SOLENOID G CIRCUIT • Inspect for resistance between TCM terminals 1Y and 1L (wiring harness-side). • Is the resistance within 5.0-5.6 ohms? (See SOLENOID VALVE INSPECTION [SJ6A-EL].)	Yes	Go to the next step.
4		No	Go to go to Step 7.
5	INSPECT SHIFT SOLENOID G CIRCUIT FOR SHORT TO GROUND • Disconnect the couple component connector. • Inspect for continuity between TCM terminals (wiring harness-side) and body ground. - Terminal 1Y and body ground - Terminal 1L and body ground • Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness for short to ground, then go to Step 13.
6	INSPECT SHIFT SOLENOID G CIRCUIT FOR SHORT TO GROUND • Inspect for continuity between couple component terminals (wiring harness-side) and body ground. - Terminal D and body ground - Terminal C and body ground • Is there continuity?	Yes	Go to go to Step 13.
6		No	Repair or replace the couple component, then go to the next step.
7	INSPECT COUPLE COMPONENT CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the couple component connector. • Inspect for poor connection at couple 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 SHIFT SOLENOID G CIRCUIT • Inspect the resistance between couple 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 SHIFT SOLENOID G CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between TCM terminals and couple component terminals (wiring harness-side). - Terminal 1Y and terminal D - Terminal 1L and terminal C • Is there continuity?	Yes	Go to Step 13.
9		No	Repair or replace the wiring harness for open circuit, go to Step 13.
10	INSPECT SHIFT SOLENOID G CONNECTOR FOR POOR CONNECTION • Disconnect the shift solenoid G connector. • Inspect for poor connection at shift solenoid G 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 SHIFT SOLENOID G • Inspect the shift solenoid G. (See SOLENOID VALVE INSPECTION [SJ6A-EL].) • Is the shift solenoid G 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 SHIFT SOLENOID G CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between couple component terminals and shift solenoid G terminals (wiring harness-side). - Terminal D and terminal B - Terminal C and terminal A • Is there continuity?	Yes	Go to the next step.
12		No	Repair or replace the couple component, then go to the next step.
13	VERIFY TROUBLESHOOTING OF DTC P2720 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the M-MDS. • Drive the vehicle in D range and make sure that gears shift smoothly from 1GR to 6GR. • Is 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 AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [SJ6A-EL].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SJ6A-EL].)
14		No	Troubleshooting completed.