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DIAGNOSIS CONTROLLER AREA NETWORK (CAN) 54C-270 STEP 34. Check the A/T- ECU for short circuit. Measure the NOTE: When diagnosing CAN-BUS on vehicles with • Refer to circuit diagrams GROUP- • Refer to configuration diagrams GROUP- CAUTION A digital multimeter should be used. For details refer to (1) Disconnect A/T- ECU connector B-19, and measure the resistance at the component side of A/T- ECU connector (2) Measure the resistance between A/T- ECU connector terminals 13 and 14. OK: 1 k Ω or more Q: Does the resistance measure 1 k Ω or more? YES : If the resistance measures 1 k Ω or more, go to Step 35 . NO : If the resistance measures less than 1 k Ω, replace the A/T-ECU. 16DB480A COVER ENGINE CONTROL UNIT AIR CLEANER A/T CONTROL UNIT 16DB502A HARNESS SIDE: B-19 TEST TEST |