P0826
PowertrainTransmissionmoderate severityUp and Down Shift Switch Circuit
What P0826 Means
The transmission control module detected a fault in the manual up/down shift switch circuit. This affects manual gear selection using paddle or shifter switches.
Symptoms
- Manual shift mode not responding
- Transmission warning light on
- Unable to shift up or down manually
Common Causes
- Faulty up/down shift switch
- Damaged or corroded wiring
- Poor connector contact
- Faulty transmission control module
Diagnostic Steps
- Scan for codes and check freeze frame data
- Test up/down switch inputs with scan tool
- Inspect switch wiring and connectors
- Replace switch or repair wiring as needed
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ANCEL AD410 →
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Serious DIY~$100
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✓ Autel official store
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Community Confirmed Fixes
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