Cordia, Mirage, Starion & Tredia
- Disconnect wiring harness connectors from ECI control unit.
- Using a 12-volt 3.4-watt test bulb, connect test bulb lead to terminal No. 59 of ECI control unit connector and to ground. Turn ignition on. Make sure that test light flashes and that meter needle deflects. SeeFig 1 .
- If results are okay and problem still exists, remove instrument cluster from instrument panel. Measure resistance between terminals of the pressure gauge.