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FL -430 FUEL SYSTEM NO ▶ When measured resistances for both cases are below 10 Ω : Repair short between one CAN BUS CAN and another one, and go to "Verification of Vehicle Repair". ▶ When measured resistances for both cases are 120 Ω : Go to"4. CAN BUS continuity test" ▶ When measured resistances for both cases are infinite Ω :Repair open in CAN communication circuit between DLC terminal box.When measured resistances for both cases are infinite Ω :Repair open in CAN communication circuit between DLC terminal box. 2. Check short to ground in CAN BUS 1) IG KEY "OFF", ENGINE "OFF" 2) Disconnect ECM connector and TCM connector. 3) Check the continuity between DLC terminal 3 and chassis ground. (CAN HIGH) 4) Check the continuity between DLC terminal 11 and chassis ground. (CAN LOW) Specification : Discontinuity (Infinite Ω ) 5) Is CAN BUS insulated with ground correctly? YES ▶ Go to "3. Check short to battery in CAN BUS" as follows. NO ▶ Repair short to ground and go to "Verification of Vehicle Repair". 3. Check short to battery in CAN BUS 1) IG KEY "OFF", ENGINE "OFF" 2) Disconnect ECM connector and TCM connector. 3) IG KEY "ON" 4) Measure the voltage of DLC terminal 3.(CAN HIGH) 5) Measure the voltage of DLC terminal 11.(CAN LOW) Specification : 0.0V~0.1V 6) Is abnormal voltage detected with both connectors disconnected? YES ▶ Repair short to battery and go to "Verification of Vehicle Repair". NO ▶ Go to "4. CAN BUS continuity test" as follows. 4. CAN BUS continuity test 1) IG KEY "OFF", ENGINE "OFF" |