P2802
PowertrainVehicle Speedmoderate severityVehicle Speed Sensor 'B' Circuit
What P2802 Means
The control module detected a fault in the 'B' vehicle speed sensor circuit. This can cause incorrect speed readings affecting the speedometer and transmission operation.
Symptoms
- Inaccurate or dead speedometer
- Erratic shifting
- Cruise control not working
Common Causes
- Faulty vehicle speed sensor
- Damaged wiring or connector
- Corroded sensor connector
- Faulty control module
Diagnostic Steps
- Scan for stored speed sensor codes
- Inspect sensor and wiring for damage
- Measure sensor signal with scope while driving
- Replace speed sensor if faulty
🔌 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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Community Confirmed Fixes
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