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DIAGNOSTIC PROCEDURE INSPECTION START (Glow relay signal circuit) CHECK MAIN POWER SUPPLY. CHECK POWER SUPPLY. position. 2. Disconnect glow relay. tion. 4. Check voltage between glow relay connector terminals p 1 , p 5 and ground with tester. Voltage: Battery voltage OK E NG Check the following: ● 15A fuse ● 80A fusible link ● Harness continuity If NG, replace fuse or CHECK OUTPUT SIGNAL CIRCUIT. position. 2. Disconnect ECM harness connector. ECM connector terminal 214 and glow relay connector terminal p 2 . Continuity should exist. If OK, check harness for short-cir- OK E NG Check harness connec- F96 , E89 Repair harness or con- CHECK GLOW PLUG AND GLOW OK E NG Replace glow plug or Disconnect and reconnect harness Trouble is not fixed Check ECM pin terminals for damage INSPECTION END NEF835 Glow relay Glow relay YEC370 Glow relay con- NEF215A Glow relay H H H H H H H TROUBLE DIAGNOSES 14 CD20T Glow Control System (Cont’d) EC-121 |