OBD Guide

P2DA1

Gear Shift Control Module B Supply Voltage Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Delays when shifting gears
  • Sharp gear changes
  • Transmission of the gearbox into emergency mode
  • Check Engine Light Is On
  • Reduced engine performance

Causes

  • Bad contacts in the electrical circuit
  • Broken or damaged wires
  • Faulty power supply
  • Fuse or relay problems
  • Shift control module B malfunction

How to Fix

  1. Check the supply voltage on the module
  2. Inspect and check the integrity of wires and connections
  3. Check fuses and relays
  4. Replace faulty electrical circuit components
  5. Replace shift control module B if necessary

Related codes

Error P2DA1 by Vehicle Brand