Cause of Failure
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
- The wiring harness or connector between OSS sensor and TCM
- The OSS sensor
- The TCM
| Step |
Action |
Values |
Yes |
No |
| 1 |
Did you perform the Diagnostic System Check - Automatic Transmission? |
- |
Go to Step 2 |
Go to Diagnostic System Check - Automatic Transmission |
| 2 |
- 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 DTC Information menu.
- Store Freeze Frame/Failure Records.
- Select Clear DTC Information from the DTC Information menu.
- Clear the DTC information.
- Perform 2 vehicle drive cycles.
Is the hold lamp ON? |
- |
Go to Step 3 |
Go to Step 5 |
| 3 |
- Select Request DTC by Status from the DTC Information menu.
- Request DTC by Status.
Is DTC P0722 displayed? |
- |
Go to Step 4 |
Go to Step 5 |
| 4 |
- Turn OFF the ignition.
- Inspect the voltage between vehicle harness and the output shaft speed (OSS) sensor.
- Disconnect the transmission control module (TCM) connector of the vehicle harness.
- Connect the voltmeter to monitor the voltage between terminal B25 and ground.
- Turn ON the ignition and lift up the vehicle.
- Measure the voltage change when the wheel is turned slowly.
Is the voltage change within the specified range? |
0-12 V |
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
. Did you complete the repair? |
- |
System OK |
- |
| 6 |
- Estimate the failure between the vehicle wiring harness connector and TCM.
- Inspect the connector. Refer to Wiring Harness and Connector Inspection Diagnosis
.
- Inspect the connection condition between the connectors.
Is the connection condition OK? |
- |
Go to Step 8 |
Go to Step 5 |
| 7 |
- Estimate the failure of the transaxle harness or between the connectors of the OSS sensor.
- Inspect the OSS sensor.
Is the condition of the OSS sensor OK? |
- |
Go to Step 9 |
Go to Step 10 |
| 8 |
- Replace the TCM. Refer to Transmission Control Module Replacement
.
- Perform the reproducing test under user condition after confirming no DTC.
Is DTC displayed? |
- |
Go to Step 2 |
System OK |
| 9 |
- Estimate the failure of the transaxle harness.
- Test the continuity and short circuit for the T/M wire and inspect the connection condition between connectors C-4. Refer to Wiring Harness and Connector Inspection Diagnosis
.
Is the condition OK? |
- |
System OK |
Go to Step 5 |
| 10 |
Replace the OSS. Refer to Output Speed Sensor Replacement
. Is the replacement complete? |
- |
System OK |
- |