OBD-I Codes List

Ford 97 Transmission control indicator lamp circuit failure

Make
Ford (1981-1995)
Category
Powertrain - Transmission
Severity
Check Engine Light

How to read it

Code 97 reads as 9 flashes, pause, 7 flashes on the check-engine light. Jumper the self-test input to signal return at the test connector, then run the key on engine off self test and the running self test, counting the check-engine flashes each time.

New to flash codes? The How to Read Ford EEC-IV Self-Test Codes walks through the test and what the numbers mean. The general OBD-I guide covers the rest.

What does Ford code 97 mean?

Transmission control indicator lamp circuit failure

Common causes of 97

  • Burned out transmission indicator bulb
  • Open or shorted lamp circuit wiring
  • Blown fuse for the lamp circuit
  • Faulty instrument cluster connection
  • PCM output fault

How to fix 97

  1. Confirm the code and check the transmission indicator bulb
  2. Inspect the lamp circuit wiring and fuse
  3. Check the instrument cluster connector for corrosion
  4. Repair wiring before replacing the cluster
  5. Replace a failed bulb or part only after the circuit test fails

Source

Source review recorded

Sources and review

Review: checked against the recorded source material.

Last updated 2026-09-25.

Report a correction for 97. Include your vehicle, the issue and a source if you have one.