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DIAGNOSIS CONTROLLER AREA NETWORK (CAN) 54C-214 (2) Connect special tool MB992045 (A/T check harness) to the A/T-ECU and the wiring harness, and measure the (3) Turn the ignition switch to the "LOCK" (OFF) position. NOTE: When diagnosing CAN BUS on vehicles with manual transmission (M/T) disregard A/T-ECU and it’s wir- CAUTION Disconnect the negative battery terminal. For details refer . (4) Disconnect the negative battery terminal. (A/T check harness) connector terminal 13 and body 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, diagnose CAN bus lines thoroughly by referring to NO : If the resistance measures less than 1 k Ω, replace the A/T-ECU. STEP 29. Check intermediate connector C-29 for loose, CAUTION The strand end of the twisted wire should be within 10 cm Q: Is intermediate connector C-29 in good condition? YES : Go to Step 30. 16DB494A TEST SPECIAL TOOL MB992045 A/T- ECU MEASURE AT THIS CONNECTOR SPECIAL TOOL MB992045 CONNECTOR 52DB014A CONNECTOR: C-29 |