OBD Guide

P071C

Transmission Mode Switch A Circuit High

P071C is an OBD-II diagnostic trouble code meaning: Transmission Mode Switch A Circuit High. Common causes: switch circuit short circuit to positive, broken or damaged wiring. Estimated repair cost: $17–89.

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

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

Related codes

Error P071C by Vehicle Brand

FAQ

What does the P071C code mean?

P071C is an OBD-II diagnostic trouble code that indicates: Transmission Mode Switch A Circuit High

What causes a P071C error code?

The most common causes of P071C include: Switch circuit short circuit to positive; Broken or damaged wiring; Gear selector malfunction; Transmission control module (TCM) problems.

How do I fix a P071C diagnostic trouble code?

To fix P071C: Check the continuity and resistance of the switch circuit. Inspect connectors and wiring for damage. Check the operation of the mode switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P071C?

Limited driving only, diagnose soon

How much does it cost to fix P071C?

The estimated repair cost for P071C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat