OBD-II Code
P0758
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$200–$1,300
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0758 is the electrical fault on shift solenoid B circuit — the TCM commanded the solenoid and saw an open, short to ground, or short to power on the driver.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0758 is the electrical fault on shift solenoid B circuit — the TCM commanded the solenoid and saw an open, short to ground, or short to power on the…
P0758 is the electrical fault on shift solenoid B circuit — the TCM commanded the solenoid and saw an open, short to ground, or short to power on the driver.
Cheapest-first ladder
- measure shift solenoid B resistance at the case connector against the FSM spec (most on/off shift solenoids run 20-30 ohms, PWM types 10-15 ohms); inspect the internal pass-through harness for fluid intrusion and pin corrosion; verify the TCM driver is not damaged by checking voltage at the connector with key on; replace the solenoid only after the wiring is confirmed clean.
- Caveat: a P0758 paired with multiple other shift solenoid electrical codes is almost always an internal harness failure, not three independent solenoid failures.
Vehicle-specific patterns1996-2005 GM trucks with the 4L60E and 4L80E set P0758 from the well-documented case connector D corrosion and fluid wicking pattern, repaired with t…
- 1996-2005GM trucks with the 4L60E and 4L80E set P0758 from the well-documented case connector D corrosion and fluid wicking pattern, repaired with the updated connector pigtail.
- 2004-2010Ford F-150 with the 5R110W sets P0758 from internal wiring harness failure that Ford addressed with a redesigned service kit.
- 2007-2013Jeep Wrangler with the 42RLE sets P0758 from solenoid pack failure that is replaced as an assembly.
- 2008-2014Cadillac CTS with the 6L50 sets P0758 alongside other 6L family codes when valve body wear cascades into solenoid driver faults.
Estimated repair$200 to $1,300.
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