P085F

Up and Down Shift Switch Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Gear shifting problems
Check Engine light comes on
The car may go into emergency mode
Reduced engine performance

Causes

Up/Down Gear Switch Malfunction
Open or short circuit in the circuit
Poor contact in connectors
Transmission control module (TCM) malfunction

How to Fix

Check up/down gear switch
Check the integrity of the circuit and connectors
Check the operation of the transmission control module (TCM)
Replace faulty components

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