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ACA00887 BF Connector: C-301 <RHD> TROUBLESHOOTING CONTROLLER AREA NETWORK (CAN) 54C-40 FUNCTION TROUBLE JUDGEMENT CONDITIONS TROUBLESHOOTING HINTS • Malfunction of the connector (short to earth inside connector) • Malfunction of the wiring harness (short to earth in the CAN-C main or sub bus lines) • Malfunction of the ECU (ETACS-ECU, or ECUs on CAN-C lines failed) DIAGNOSIS PROCEDURE STEP 1. Check the wiring harness between C-301 CAUTION • Disconnect the negative battery terminal. For details refer to . • A digital multimeter should be used. For details refer to . • The test wiring harness should be used. For details refer to . (1) Disconnect joint connector (CAN2), and measure at the wiring harness side. (2) Resistance between C-03 joint connector (CAN2) terminal No.11 and body earth. OK: 1 k Ω or more (3) Resistance between C-03 joint connector (CAN2) terminal No.22 and body earth. OK: 1 k Ω or more Q: Is the check result normal? YES <vehicles with ASC or AFS> : Go to Step 2. YES <vehicles without ASC and without AFS with Go to Step 3. YES <vehicles without ASC and without AFS Go to Step 4. NO : Go to Step 12. STEP 2. Check the wiring harness between C-211 CAUTION • Disconnect the negative battery terminal. For details refer to . • A digital multimeter should be used. For details refer to . • The test wiring harness should be used. For details refer to . (1) Disconnect joint connector (CAN2), and measure at the wiring harness side. (2) Resistance between C-03 joint connector (CAN2) terminal No.9 and body earth. OK: 1 k Ω or more (3) Resistance between C-03 joint connector (CAN2) terminal No.20 and body earth. OK: 1 k Ω or more Q: Is the check result normal? YES <vehicles with reversing sensor system> : Go to Step 3. YES <vehicles without reversing sensor system> : Go to Step 4. NO : Go to Step 10. STEP 3. Check the wiring harness between C-40 CAUTION • Disconnect the negative battery terminal. For details refer to . • A digital multimeter should be used. For details refer to . • The test wiring harness should be used. For details refer to . (1) Disconnect joint connector (CAN2), and measure at the wiring harness side. (2) Resistance between C-03 joint connector (CAN2) terminal No.7 and body earth. OK: 1 k Ω or more (3) Resistance between C-03 joint connector (CAN2) |