OBD Guide

P069F

Throttle Actuator Control Lamp Control Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–89 (est.)

Symptoms

  • Check Engine Light Is On
  • TAC malfunction indicator does not work or stays on
  • Possible power limitations (emergency mode)
  • Lack of response to pressing the gas pedal in some cases
  • Unstable idle speed

Causes

  • Open circuit in the throttle valve control lamp circuit
  • Short circuit in TAC indicator circuit
  • Malfunction of the indicator lamp itself or its socket
  • TAC module wiring or connector problems
  • Internal fault in the ECU or throttle control module

How to Fix

  1. Read error codes, identify the presence of additional TAC system codes
  2. Visually inspect the indicator circuit and TAC module wiring
  3. Check the voltage and continuity of the signal lamp circuit with a multimeter
  4. Inspect the ECU and TAC module connectors for oxidation and damage.
  5. Replace the faulty circuit element (lamp, relay, wiring)
  6. Reset error codes and check the correct operation of the indicator

Related codes

Error P069F by Vehicle Brand