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Malfunction Indicator Light (Mil)

  1. Malfunction indicator light comes on whenever an emissions related fault occurs. The fault warning light should go out after repairing fault in vehicle.
  2. A fault code will remain in ECA memory until erased. To erase memory, disconnect negative battery cable and depress brake pedal for at least 5 seconds. Reconnect battery cable and ensure malfunction indicator light is off.
Fig 1: Analog Voltmeter Trouble Code Pulse Patterns
G61439Courtesy of FORD MOTOR CO.
ECA FAULT CODES

Trouble Code No. Component Circuit Action To Take
01 Ignition Coil (-) Go To ECA-2
09 Cool. Temp. Sensor Go To ECA-4
13 Map Sensor Go To ECA-8
15 EGO Sensor Go To ECA-14
16 EGR Position Sensor Go To ECA-19
17 Feedback System Go To ECA-23
18 ABCV No. 1 Go To ECA-28
19 ABCV No. 2 Go To ECA-28
20 ABCV No. 3 Go To ECA-28
21 ABCV No. 4 Go To ECA-28
22 Shutoff Solenoid Go To ECA-31
28 EGR Vac. Solenoid 1 Go To ECA-35
29 EGR Vac. Solenoid 2 Go To ECA-35
31 Air Control Solenoid Go To ECA-39
34 E/L Solenoid Valve Go To ECA-43
35 A/C Solenoid Valve Go To ECA-43
38 EFE Heater Relay Go To ECA-47
70 Vacuum Switch Go To ECA-51
No Code N/A Go To ECA-55