OBD Guide

P07D4

Transmission Mode Switch F Circuit

P07D4 is an OBD-II diagnostic trouble code meaning: Transmission Mode Switch F Circuit. Common causes: open or short circuit in the circuit, faulty mode switch. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Incorrect operation of transmission modes
  • Check Engine Light Is On
  • The car goes into emergency mode
  • Transmission modes do not switch
  • Delays when shifting gears

Causes

  • Open or short circuit in the circuit
  • Faulty mode switch
  • Wiring Harness Problems
  • Poor connection on connectors
  • TCM malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the contacts on the connectors
  3. Measure switch resistance
  4. Check the voltage supply to the switch
  5. Replace switch if necessary

Related codes

Error P07D4 by Vehicle Brand

FAQ

What does the P07D4 code mean?

P07D4 is an OBD-II diagnostic trouble code that indicates: Transmission Mode Switch F Circuit

What causes a P07D4 error code?

The most common causes of P07D4 include: Open or short circuit in the circuit; Faulty mode switch; Wiring Harness Problems; Poor connection on connectors.

How do I fix a P07D4 diagnostic trouble code?

To fix P07D4: Check the integrity of the wiring harness. Check the contacts on the connectors. Measure switch resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P07D4?

Yes, but get it checked soon

How much does it cost to fix P07D4?

The estimated repair cost for P07D4 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat