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For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 G3 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - Aisin 81-40LE 🢒 DTC P0758

DTC P0758 Non European or N. American Emissions

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0758 2-3 Shift Solenoid (SS) Control Circuit

Conditions for Setting the DTC
    • The transmission control module (TCM) detects that the ON signal of the shift solenoid (SS) 2 monitor during 0.5 second when the SS 2 driver outputs the OFF signal. The SS 2 circuit is open or short to battery.
    • The TCM detects that the OFF signal of the SS 2 monitor during 0.3 second when the SS 2 driver outputs the ON signal. The SS 2 circuit is short to battery.
    • The above detection 8 times at shifting continuously.

Action Taken When the DTC Sets
    • The TCM will request the illumination of the hold lamp and store the DTC when the TCM detects a failure on the first ignition cycle.
    • No lockup control
    • No engine torque reduction control
    • No engagement pressure control
    • No timing solenoid control for N-D
    • No self-learning control
    • After failure decision: emergency mode

Normal

SS2 Fail

Gear

SS1

SS2

Gear

SS1

SS2

1st

ON

ON

2nd

ON

FAIL

2nd

ON

OFF

2nd

ON

FAIL

3rd

OFF

OFF

3rd

OFF

FAIL

4th

OFF

ON

3rd

OFF

FAIL

Conditions for Clearing the DTC
    • The TCM turns OFF the hold lamp when no further failures are detected on the next ignition cycle.
    • The scan tool can clear the DTC from the TCM history.
    • The TCM clears the DTC from the TCM history memory after 40 consecutive ignition cycles without fault.
    • The TCM detects the ON signal of the SS 2 monitor during 160 ms when the SS 2 driver outputs the ON signal and the TCM detects the OFF signal of the SS 2 monitor during 160 ms when the SS 2 driver outputs the OFF signal.

Cause of Failure
    • The SS2 and the TCM
    • The SS2
    • The TCM

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check - Automatic Transmission?

--

Go to Step 2

Go to Diagnostic System Check - Automatic Transmission

2
  1. Turn OFF the ignition.
  2. Install the scan tool.
  3. With the engine OFF, turn the ignition switch to the ON position.
  4. Select Store Freeze Frame/Failure Records from the DTC Information menu.
  5. Store Freeze Frame/Failure Records.
  6. Select Clear DTC Information from the DTC Information menu.
  7. Clear the DTC information.
  8. Perform one vehicle drive cycle.

Is the hold lamp ON?

--

Go to Step 3

Go to Step 4

3
  1. Select Request DTC by Status from the DTC Information menu.
  2. Request DTC by Status.

Is DTC P0758 displayed?

--

Go to Step 5

Go to Step 4

4

Repair the temporary connection failure of the connector. Refer to Wiring Harness and Connector Inspection Diagnosis .

Did you complete the repair?

--

System OK

--

5
  1. Turn OFF the ignition.
  2. Measure the resistance between the vehicle harness and the shift solenoid (SS) 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .
  3. Disconnect the transmission control module (TCM) connector and measure the resistance between the terminal A15 and A23.

Is the measurement within the specified values?

20°C (68°F)

11-16 Ω

Go to Step 6

Go to Step 7

6
  1. Inspect for damage between the vehicle wiring harness connector and the TCM.
  2. Inspect the connector. Refer to Wiring Harness and Connector Inspection Diagnosis .
  3. Inspect the connection condition between the connectors.

Is the connection condition OK?

--

Go to Step 8

Go to Step 4

7
  1. Inspect for damage between the vehicle harness and the SS 2.
  2. Disconnect the transaxle harness connector and measure the resistance between the SS 2 connector terminal 10 and ground.

Is the measurement within the specified values?

20°C (68°F)

11-16 Ω

Go to Step 9

Go to Step 10

8
  1. Replace the TCM. Refer to Transmission Control Module Replacement .
  2. Perform the reproducing test under user condition after confirming no DTC.

Is DTC displayed?

--

Go to Step 2

System OK

9
  1. Inspect for damage of the vehicle wiring harness or between connectors.
  2. Inspect the continuity and short circuit for the vehicle wiring harness and the connection condition between connectors C-3. Refer to Wiring Harness and Connector Inspection Diagnosis .

Is the condition OK?

--

Go to Step 4

Go to Step 12

10
  1. Inspect for damage of the transaxle harness or between connectors of SS 2.
  2. Inspect the SS 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Is the condition found?

--

Go to Step 13

Go to Step 11

11
  1. Inspect for damage of the transaxle harness.
  2. Inspect the continuity and short circuit for the transaxle harness and inspect the connection condition between connectors. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Is the condition OK?

--

Go to Step 4

Go to Step 12

12

Replace the transaxle harness.

Did you complete the replacement?

--

System OK

--

13

Replace the SS 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Did you complete the replacement?

--

System OK

--

DTC P0758 European and N. American Emissions

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0758 2-3 Shift Solenoid (SS) Control Circuit

Conditions for Setting the DTC
    • The transmission control module (TCM) detects that the ON signal of the shift solenoid (SS) 2 monitor during 0.5 second when the SS 2 driver outputs the OFF signal. The SS 2 circuit is open or short to battery.
    • The TCM detects that the OFF signal of the SS 2 monitor during 0.3 second when the SS 2 driver outputs the ON signal. The SS 2 circuit is short to battery.
    • The above detection 8 times at shifting continuously.

Action Taken When the DTC Sets
    • The TCM will request the illumination of the malfunction indicator lamp (MIL) and store the DTC when the TCM detects a failure on the first ignition cycle.
    • No lockup control
    • No engine torque reduction control
    • No engagement pressure control
    • No timing solenoid control for N-D
    • No self-learning control
    • After failure decision: emergency mode

Normal

SS2 Fail

Gear

SS1

SS2

Gear

SS1

SS2

1st

ON

ON

2nd

ON

FAIL

2nd

ON

OFF

2nd

ON

FAIL

3rd

OFF

OFF

3rd

OFF

FAIL

4th

OFF

ON

3rd

OFF

FAIL

Conditions for Clearing the DTC
    • The TCM turns off the MIL when no further failures are detected on the next ignition cycle.
    • The scan tool can clear the DTC from the TCM history.
    • The TCM clears the DTC from the TCM history memory after 40 consecutive ignition cycles without fault.
    • The TCM detects the ON signal of the SS 2 monitor during 160 ms when the SS 2 driver outputs the ON signal and the TCM detects the OFF signal of the SS 2 monitor during 160 ms when the SS 2 driver outputs the OFF signal.

Cause of Failure
    • The SS2 and the TCM
    • The SS2
    • The TCM

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check - Automatic Transmission?

--

Go to Step 2

Go to Diagnostic System Check - Automatic Transmission

2
  1. Turn OFF the ignition.
  2. Install the scan tool.
  3. With the engine OFF, turn the ignition switch to the ON position.
  4. Select Store Freeze Frame/Failure Records from the DTC Information menu.
  5. Store Freeze Frame/Failure Records.
  6. Select Clear DTC Information from the DTC Information menu.
  7. Clear the DTC information.
  8. Perform one vehicle drive cycle.

Is the malfunction indicator lamp (MIL) ON?

--

Go to Step 3

Go to Step 4

3
  1. Select Request DTC by Status from the DTC Information menu.
  2. Request DTC by Status.

Is DTC P0758 displayed?

--

Go to Step 5

Go to Step 4

4

Repair the temporary connection failure of the connector. Refer to Wiring Harness and Connector Inspection Diagnosis .

Did you complete the repair?

--

System OK

--

5
  1. Turn OFF the ignition.
  2. Measure the resistance between the vehicle harness and shift solenoid (SS) 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .
  3. Disconnect the transmission control module (TCM) connector and measure the resistance between the terminal A15 and A23.

Is the measurement within the specified values?

20°C (68°F)

11-16 Ω

Go to Step 6

Go to Step 7

6
  1. Inspect for damage of between the vehicle wiring harness connector and the TCM.
  2. Inspect the connector. Refer to Wiring Harness and Connector Inspection Diagnosis .
  3. Inspect the connection condition between the connectors.

Is the connection condition OK?

--

Go to Step 8

Go to Step 4

7
  1. Inspect for damage between the vehicle harness and the SS 2.
  2. Disconnect the transaxle harness connector and measure the resistance between the SS 2 connector terminal 10 and ground.

Is the measurement within the specified values?

20°C (68°F)

11-16 Ω

Go to Step 9

Go to Step 10

8
  1. Replace the TCM. Refer to Transmission Control Module Replacement .
  2. Perform the reproducing test under user condition after confirming no DTC.

Is DTC displayed?

--

Go to Step 2

System OK

9
  1. Inspect for damage of the vehicle wiring harness or between the connectors.
  2. Inspect the continuity and short circuit for the vehicle wiring harness and the connection condition between connectors C-3. Refer to Wiring Harness and Connector Inspection Diagnosis .

Is the condition OK?

--

Go to Step 4

Go to Step 12

10
  1. Inspect for damage of the transaxle harness or between connectors of SS 2.
  2. Inspect the SS 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Is the condition found?

--

Go to Step 13

Go to Step 11

11
  1. Inspect for damage of the transaxle harness.
  2. Inspect the continuity and short circuit for the transaxle harness and inspect the connection condition between connectors. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Is the condition OK?

--

Go to Step 4

Go to Step 12

12

Replace the transaxle harness.

Did you complete the replacement?

--

System OK

--

13

Replace the SS 2. Refer to 1, 2 Shift Solenoid, Timing Solenoid, and Lock-Up Solenoid Inspection .

Did you complete the replacement?

--

System OK

--