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REAR AXLE – Troubleshooting <AYC> 27-14 Code No. 65: ABS monitor system Probable cause This code is output when ABS is considered to remain activated (motor relay remains D Defective harness or connector D Defective AYC-ECU OK Replace AYC-ECU. NG Check the harness between ABS NG Repair OK Check the trouble symptom. Is the ABS diagnosis code output? YES Refer to Group 35B – Troubleshooting NO Check the following connector: NG Repair Code No. 71: Proportioning valve system Probable cause This code is output when the proportioning valve control circuit is open- or short-circuited. D Defective proportioning valve D Defective harness or connector D Defective AYC-ECU OK Check and repair the harness between OK Check the trouble symptom. OK Measure at F-27 proportioning valve D Disconnect the connector and D Continuity across 2 and body NG Check the following connectors: NG Repair Measure at F-27 proportioning valve D Disconnect the connector and D Resistance across 2 – 3 Ω or less NG Replace the hydraulic unit. OK Replace AYC-ECU. NG Check the harness between propor- NG Repair OK Check the trouble symptom. OK Check the following connectors: NG Repair |