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DIESEL CONTROL SYSTEM FLA -251 SIGNAL CIRCUIT INSPECTION EE186438 1. Check signal circuit voltage 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect CKPS connector. 3) IG KEY "ON". 4) Measure the voltage of CKPS connector terminal 2 and 3. Specification : 2.4V~2.6V 5) Is the measured voltage within the specification? YES ▶ Go to "3.Check short between signal circuits." NO ▶ Go to "2.Check open in signal circuit" as follows. 2. Check open in signal circuit 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect CKPS connector and ECM connector. 3) Check continuity between CKPS connector terminal 2 and ECM connector terminal 12(A/T),27(M/T). 4) Check continuity between CKPS connector terminal 3 and ECM connector terminal 27(A/T),12(M/T). Specification : continuity ( below 1.0Ω ) 5) Is the measured resistance within the specification? YES ▶ Go to "3. Check short between signal circuits". NO ▶ Repair open in signal circuit and go to "Verification of Vehicle Repair". 3. Check short between signal circuits 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect CKPS connector and ECM connector. 3) Check continuity between CKPS connector terminal 2 and 3. Specification : Discontinuity ( Infinite Ω ) 4) Is the measured resistance within the specification? |