Test Description
WARNING: This page is about a different car, the 2004 Pontiac Grand Am and 2004 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 8: This step tests the electrical operation of the solenoid.
- 9: This step verifies the ability of the PCM to command the solenoid.
- 17: This step verifies that the circuit has the correct resistance.
DTC P0758 (3.4L)
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | - | Go to Step 2 | Go to Diagnostic System Check - Engine Controls in Engine Controls - 3.4L |
| 2 |
IMPORTANT:
Before clearing the DTC, use the scan tool in order to record the Freeze Frame and Failure Records. Using the Clear Info function erases the Freeze Frame and Failure Records from the PCM.
|
- | Go to Step 3 | Go to Step 8 |
| 3 |
|
- | Go to Step 4 | Go to Step 6 |
| 4 |
IMPORTANT:
The condition that affects this circuit may exist in other connecting branches of the circuit. Refer to Power Distribution Schematics
in Wiring Systems for complete circuit distribution. Test the ignition 1 voltage circuit of the 2-3 SS valve for a short to ground between the underhood junction block and the AT inline 20-way connector.Refer to Testing for Short to Ground
and Wiring Repairs
in Wiring Systems.Did you find and correct the condition? |
- | Go to Step 26 | Go to Step 5 |
| 5 |
IMPORTANT:
The condition that affects this circuit may exist in other connecting branches of the circuit. Refer to Power Distribution Schematics
in Wiring Systems for complete circuit distribution. Test the ignition 1 voltage circuit of the 2-3 SS valve for a short to ground between the AT inline 20-way connector and the 2-3 SS valve.Refer to Testing for Short to Ground
in Wiring Systems.Did you find the condition? |
- | Go to Step 23 | - |
| 6 | Test the ignition 1 voltage circuit of the 2-3 SS valve for an open between the underhood junction block and the AT inline 20-way connector. Refer to Testing for Continuity in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 26 | Go to Step 7 |
| 7 | Test the ignition 1 voltage circuit of the 2-3 SS valve for an open between the AT inline 20-way connector and the 2-3 SS valve. Refer to Testing for Continuity in Wiring Systems. Did you find the condition? |
- | Go to Step 23 | - |
| 8 |
|
- | Go to Intermittent Conditions in Engine Controls - 3.4L | Go to Step 9 |
| 9 |
|
- | Go to Step 17 | Go to Step 10 |
| 10 | Is the test lamp always ON? | - | Go to Step 11 | Go to Step 13 |
| 11 |
|
- | Go to Step 12 | Go to Step 25 |
| 12 | Test the control circuit of the 2-3 SS valve for a short to ground between the PCM connector C1 and the AT inline 20-way connector. Refer to Testing for Short to Ground in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 26 | - |
| 13 | Is the test lamp always OFF? | - | Go to Step 14 | - |
| 14 | Test the control circuit of the 2-3 SS valve for an open between the PCM connector C1 and the AT inline 20-way connector. Refer to Testing for Continuity and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 26 | Go to Step 15 |
| 15 | Connect a test lamp from the 2-3 SS valve control circuit of the J 44152
to ground. Refer to Automatic Transmission Inline 20-Way Connector End View . Is the test lamp ON? |
- | Go to Step 16 | Go to Step 25 |
| 16 | Test the control circuit of the 2-3 SS valve for a short to voltage between the PCM connector C1 and the AT inline 20-way connector. Refer to Testing for a Short to Voltage and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 26 | - |
| 17 |
|
19-31 Ω | Go to Step 20 | Go to Step 18 |
| 18 | Is the resistance greater than the specified value? | 31 Ω | Go to Step 19 | Go to Step 20 |
| 19 |
|
- | Go to Step 23 | Go to Step 24 |
| 20 | Measure the resistance from the 2-3 SS valve control circuit of the J 44152
to ground. Refer to Automatic Transmission Inline 20-Way Connector End View . Is the resistance less than the specified value? |
1,000 Ω | Go to Step 21 | Go to Step 22 |
| 21 | Test the control circuit of the 2-3 SS valve for a short to ground between the AT inline 20-way connector and the 2-3 SS valve. Refer to Testing for Short to Ground in Wiring Systems. Did you find the condition? |
- | Go to Step 23 | - |
| 22 | Measure the resistance between the 2-3 SS valve and all other terminals, except the ignition 1 voltage circuit, the 1-2 SS valve control circuit, and the TCC PWM solenoid valve control circuit, of the J 44152
. Refer to Automatic Transmission Inline 20-Way Connector End View . Is the resistance less than the specified value? |
1,000 Ω | Go to Step 23 | Go to Step 24 |
| 23 | Replace the automatic transmission wiring harness. Refer to Wiring Harness Replacement . Did you complete the replacement? |
- | Go to Step 26 | - |
| 24 | Replace the 2-3 SS valve. Refer to 2-3 Shift Solenoid Valve Replacement . Did you complete the replacement? |
- | Go to Step 26 | - |
| 25 | Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls - 3.4L. Did you complete the replacement? |
- | Go to Step 26 | - |
| 26 | Perform the following procedure in order to verify the repair:
Has the test run and passed? |
- | Go to Step 27 | Go to Step 2 |
| 27 | With the scan tool, observe the stored information, capture info and DTC info. Does the scan tool display any DTCs that you have not diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List in Engine Controls - 3.4L | System OK |