P0926
PowertrainTransmission Shifthigh severityGear Shift Reverse Actuator Circuit Low
What P0926 Means
The reverse shift actuator circuit voltage is lower than expected. This often points to a short to ground or a failed actuator.
Symptoms
- No reverse engagement
- Harsh reverse shifting
- Transmission fault light
Common Causes
- Short to ground in actuator circuit
- Failed reverse shift actuator
- Damaged wiring harness
- Faulty transmission control module
Diagnostic Steps
- Retrieve transmission codes
- Check actuator circuit for short to ground
- Measure actuator supply voltage
- Repair wiring or replace actuator
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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