Pinpoint Test AI: The Low Tire Warning Display Is Never/Always On

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

AI1 CHECK FOR CORRECT OPERATION OF THE MESSAGE CENTER
- Key in ON position.
- CARRY-OUT the instrument cluster self-diagnostic test to illuminate all segments of the message display.
- Does the message center display illuminate?
Yes

Refer to SUSPENSION SYSTEM to continue diagnosis of the low tire pressure system.

No

GO to AI2.
AI2 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes

INSTALL a new instrument cluster. Refer to INSTRUMENT CLUSTER . TEST the system for normal operation.

No

The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.