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STEP 6. Check the wiring harness between joint connector (1) Disconnect joint connector (CAN3), and measure the voltage (2) Turn the ignition switch to the ON position. ZC5010400012 Harness side: C-01 Test harness (3) Measure the voltage between joint connector (CAN3) OK: 4.7 volts or less ZC5010400013 Harness side: C-01 Test (4) Measure the voltage between joint connector (CAN3) OK: 4.7 volts or less Q:Do all the voltages measure 4.7 volts or less? YES: Check intermediate connector C-27, and repair if necessary. If the intermediate connector is in good NO: Go to Step 12. STEP 7. Using scan tool MB991958, diagnose the CAN bus Strictly observe the specified wiring harness repair To prevent damage to scan tool MB991958, always turn the (1) Disconnect steering wheel sensor connector C-209. CONTROLLER AREA NETWORK (CAN) 54D-59 DIAGNOSIS |