What are the common causes of P0758?

Faulty shift solenoid B. Open or shorted solenoid circuit. Damaged internal transmission harness. Poor connector contact at the solenoid pack. TCM fault.

Test shift solenoid B resistance against specification. Inspect the internal harness and connector. Check supply voltage and control grounds from the TCM. Replace the solenoid and harness seals if worn. Replace the TCM only after the circuit is proven good.

P0758

Shift Solenoid B Electrical

System: Transmission (P code)
Lamp: Check Engine Light
Category: Powertrain - Transmission

What it means

P0758 means Shift Solenoid B Electrical.

Where it lives

For P0758, the part to look at first is the solenoid named here.

Check these first

Faulty shift solenoid B
Open or shorted solenoid circuit
Damaged internal transmission harness
Poor connector contact at the solenoid pack
TCM fault

What to do next

Test shift solenoid B resistance against specification
Inspect the internal harness and connector
Check supply voltage and control grounds from the TCM
Replace the solenoid and harness seals if worn
Replace the TCM only after the circuit is proven good

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.