P0708
PowertrainTransmissionmoderate severityTransmission Range Sensor Circuit High Input
What P0708 Means
The transmission range sensor is sending a voltage signal that is higher than expected. This tells the computer the gear selector position which affects shifting and starting.
Symptoms
- Erratic or wrong gear indication
- No-start in park or neutral
- Harsh or delayed shifting
Common Causes
- Faulty transmission range sensor
- Short to voltage in wiring
- Corroded or loose connector
- Faulty PCM/TCM
Diagnostic Steps
- Scan for stored codes and freeze frame
- Inspect range sensor connector and wiring
- Measure sensor signal voltage across gears
- Replace range sensor if out of spec
🔌 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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