When it comes to Kia vehicles, one of the most common problems that drivers face is the Kia Code P0758. This code is a warning signal that something is wrong with the TCM Shift Solenoid ‘B’ Circuit, which helps the engine to switch gears. When the PCM detects an open or shorted condition in the SSB circuit during the CCM test, the P0758 code is triggered. The most common causes of this problem include a SSB control circuit open or shorted to ground, SSB control circuit shorted to system power (B+), SSB is damaged or has failed, PCM or TCM has failed, and TSB 3TD008 (3/02). To help address this issue, Kia released a service bulletin known as TRA 051.
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Causes and Solutions for Kia Code P0758
| Cause | Solution |
|---|---|
| SSB control circuit open or shorted to ground | Test the SSB control circuit and replace if necessary. |
| SSB control circuit shorted to system power (B+) | Check the wiring and connections of the SSB control circuit and repair as necessary. |
| SSB is damaged or has failed | Replace the SSB with a new one. |
| PCM or TCM has failed | Replace the PCM or TCM with a new one. |
SSB Control Circuit Open or Shorted to Ground
When the Kia Code P0758 is triggered by an open or shorted SSB control circuit, it is important to test the circuit and repair or replace the wiring or connections as necessary. This can be done by using a multimeter to check the continuity of the circuit and to identify any potential problems.
SSB Control Circuit Shorted to System Power (B+)
If the SSB control circuit has been shorted to system power, it is important to check the wiring and connections of the SSB control circuit and repair as necessary. This can be done by using a multimeter to check the circuit’s continuity and identify any potential problems.
SSB Is Damaged or Has Failed
If the SSB has been damaged or has failed, it is important to replace the SSB with a new one. This can be done by finding the correct SSB for the vehicle, removing the old one, and installing the new one. It is important to ensure the new SSB is properly connected and the wiring is secure.
💥See also: Kia Code P0301
PCM or TCM Has Failed
If the PCM or TCM has failed, it is important to replace the PCM or TCM with a new one. This can be done by finding the correct PCM or TCM for the vehicle, removing the old one, and installing the new one. It is important to ensure that the new PCM or TCM is properly connected and that the wiring is secure.
Conclusion
Kia Code P0758 can signal that something is wrong with the TCM Shift Solenoid ‘B’ Circuit. The most common causes of this problem include a SSB control circuit open or shorted to ground, SSB control circuit shorted to system power (B+), SSB is damaged or has failed, PCM or TCM has failed, and TSB 3TD008 (3/02). To help address this issue, Kia released a service bulletin known as TRA 051. To fix the Kia Code P0758 problem, it is important to test the SSB control circuit and replace it if necessary, check the wiring and connections of the SSB control circuit and repair as necessary, replace the SSB with a new one, and replace the PCM or TCM with a new one.
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