Cause of Failure

WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.

SS1
Inside valve body
TCM

DTC P0751 (European and N. American Emissions)

Step	Action	Yes	No
1	Turn OFF the ignition. Install the scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform 2 vehicle drive cycles. Is the MIL lamp ON?	Go to Step 2	Go to Step 5
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P0751 displayed?	Go to Step 3	Go to Step 5
3	Turn OFF the ignition. Replace the TCM. Refer to Transmission Control Module (TCM) Replacement . Road test vehicle. Is DTC P0751 displayed?	Go to Step 4	Go to Transmission Control Module (TCM) Replacement
4	Estimate the failure of shift solenoid 1 (SS1) or internal valve body. Inspect the SS1. Refer to Shift Solenoid (1, 2), Timing Solenoid, Lock-Up Solenoid Inspection . Is the condition of the SS1 OK?	Go to Step 6	Go to Step 7
5	Repair the temporary connection failure of the connector. Refer to Wiring Harness and Connector Inspection Diagnosis .	System OK	-
6	Replace the valve body assembly. Refer to Control Valve Body Disassemble . Did you complete the replacement?	System OK	-
7	Replace Shift Solenoid 1. Did you complete the repair?	-	Go to Step 6