OBD Guide

P0954

Auto Shift Manual Control Circuit Intermittent

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Inability to switch to manual control mode
  • Spontaneous exit from manual mode
  • Automatic transmission mode indicator blinking
  • Incorrect gear shifting in manual mode
  • Check Engine Light Illuminates

Causes

  • Manual mode switch malfunction
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • Transmission control module (TCM) problems
  • Wiring harness damage

How to Fix

  1. Check the integrity of the manual mode control circuit
  2. Inspect and clean switch contacts and connectors
  3. Check the operation of the manual mode switch
  4. Scan the transmission control module for additional errors
  5. If necessary, replace the switch or repair the wiring

Related codes

Error P0954 by Vehicle Brand