The Ford P0758 code is a shift solenoid issue. This code can be complex for car owners to diagnose, as it can be caused by a variety of different issues. The code is generated when the powertrain control module (PCM) detects an unexpected voltage condition on the Shift Solenoid 2/B circuit during the CCM test period. It can be caused by damage to the Shift Solenoid 2/B connector, an open or shorted control circuit, damage to the solenoid itself, or a failed PCM. To properly diagnose this code, the technician must first clear the diagnostic trouble codes (DTCs) related to this code, such as P0755, P0976, and/or P0977.
Causes and Solutions for Ford P0758 Code
| Cause | Solution |
|---|---|
| Shift Solenoid 2/B connector is damaged, open or shorted | Inspect the connector for damage and repair or replace as needed. |
| Shift Solenoid 2/B control circuit is open | Check the circuit for damage and repair as needed. |
| Shift Solenoid 2/B control circuit is shorted to ground | Check for a short to ground and repair as needed. |
| Shift Solenoid 2/B is damaged or it has failed | Replace the solenoid if it is damaged or has failed. |
| PCM has failed | Replace the PCM if it has failed. |
Shift Solenoid 2/B Connector Damage
The Ford P0758 code is typically caused by damage to the Shift Solenoid 2/B connector. Inspect the connector for any visible damage or corrosion and repair or replace as needed. If the connector is damaged, it must be replaced to ensure proper operation of the Shift Solenoid 2/B circuit.
Shift Solenoid 2/B Control Circuit Open
Another common cause of the Ford P0758 code is an open or shorted Shift Solenoid 2/B control circuit. This could be caused by a broken wire, a faulty connector, or a damaged component on the circuit. To diagnose this issue, the technician must first check the control circuit for any visible damage and repair as needed.
Shift Solenoid 2/B Control Circuit Shorted to Ground
The Ford P0758 code can also be caused by a shorted Shift Solenoid 2/B control circuit. This could be caused by a broken wire, a faulty connector, or a damaged component on the circuit. To diagnose this issue, the technician must check for a short to ground on the control circuit and repair as needed.
Shift Solenoid 2/B Damage or Failure
The Ford P0758 code can also be caused by damage or failure of the Shift Solenoid 2/B. If the solenoid is damaged or has failed, it must be replaced to ensure proper operation of the Shift Solenoid 2/B circuit.
PCM Failure
The Ford P0758 code can also be caused by a failed PCM. The PCM is responsible for monitoring the Shift Solenoid 2/B circuit and if it has failed, it must be replaced to ensure proper operation of the circuit.
Conclusion: Solving Ford P0758 Code Issues
The Ford P0758 code is a shift solenoid issue that can be difficult for car owners to diagnose. It is typically caused by damage to the Shift Solenoid 2/B connector, an open or shorted control circuit, damage to the solenoid itself, or a failed PCM. To properly diagnose and solve this code, the technician must first clear the diagnostic trouble codes (DTCs) related to this code and then inspect the connector, check the control circuit, inspect the solenoid, and replace the PCM as needed. Solving the Ford P0758 code issue can be a complex process, but with the right knowledge and tools, it can be done quickly and efficiently.
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