P071C

Transmission Mode Switch A Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

The gearbox goes into emergency mode
Incorrect gear shifting
Check Engine light comes on
The selected mode is not displayed on the instrument panel
Problems starting the engine (in some models)

Causes

Switch circuit short circuit to positive
Broken or damaged wiring
Gear selector malfunction
Transmission control module (TCM) problems
Poor contact in connectors

How to Fix

Check the continuity and resistance of the switch circuit
Inspect connectors and wiring for damage
Check the operation of the mode switch
Scan the transmission control module for other errors
If necessary, replace the switch or repair the wiring

Related codes

P071D P0715 P0705