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TROUBLESHOOTING CONTROLLER AREA NETWORK (CAN) 54C-31 STEP 9. M.U.T.-III CAN bus diagnostics [RV meter AC903856 Connector: C-171 <LHD> AY Harness side C-171 (GR) AC903868 Connector: C-171 <RHD> BQ Harness side C-171 (GR) (1) Disconnect RV meter connector C-171, and diagnose by using the M.U.T.-III. ACA01247 : Red section on screen AB ETACS DISPLAY ABS/ASC SAS YR/G A/C AT ENGINE JC JC M.U.T. (2) Diagnose CAN bus lines, and check if M.U.T.-III screen is as shown in the illustration. Q: Does M.U.T.-III screen correspond to the illustration? Repair the wiring harness between joint connector (CAN1) and the RV meter NO : Check the RV meter connector, and repair if − RV meter .) STEP 10. Check the CAN line between joint CAUTION A digital multimeter should be used. For details CAUTION The test wiring harness should be used. For . AC903853 BM Connector: C-119 <LHD> C-119 (GR) AC903868 CM Connector: C-119 <RHD> C-119 (GR) (1) Disconnect joint connector (CAN1), and measure at the wiring harness side. (2) Connect the negative battery terminal, and turn the ignition switch to the ON position. AC209365 AC209365 AC209365 AC209365 AC209365RS Harness side: C-119 Test (3) Voltage between C-119 joint connector (CAN1) |