CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B

Transcription

1 052 6 DIAGNOSTICS CHECK CAN US LINE (CANH) FOR SHORT TO + 05IR40 CIRCUIT DESCRIPTION A short to + is suspected in the CAN bus line when there is continuity between terminals 6 () and 6 () of the DLC. Symptom There is continuity between terminals 6 () and 6 () of DLC. IRI DIAGRAM Trouble Area Short to + in CAN bus line () Skid control ECU Steering sensor Yaw rate sensor S4 Steering Sensor J6 J/C Skid Control ECU ith Actuator D DLC 6 4 Y 2 22 VSC STRG VSC STRG YA DLC YA DLC 8 20 L G 2 IO2 IO2 2 IC4 25 IC4 2 Y Yaw Rate Sensor Instrument Panel J/ P E 6 J7 J/C E P E D OD A G R 5 IC F7 FL lock Engine Room J/ FL MAIN ALT 2 8 2I SHORT PIN ECU 4 2A L +S attery G

2 DIAGNOSTICS INSPECTION PROCEDURE CHECK CAN US LINE FOR SHORT TO +(DLC SU US LINE, CANH) Junction Connector: J6 Disconnect the wire harness connector (J6) from the junction connector. G25476 G2640 D D6 () D6 () Ignition S OFF REPAIR OR REPLACE DLC SU US LINE OR CONNECTOR (CANH) 2 CONNECTION OF CONNECTORS Reconnect the wire harness connectors (J6) to the junction connector. 207

3 052 8 DIAGNOSTICS CHECK CAN US LINE FOR SHORT TO +(SKID CONTROL ECU, CANH) D Disconnect the connector () from the skid control ECU. D6 () D6 () Ignition S OFF REPLACE SKID CONTROL ECU ITH ACTUATOR (SEE PAGE 27 ) 4 CHECK CAN US LINE FOR SHORT TO +(STEERI SENSOR, CANH) D Reconnect the connector () to the skid control ECU. Disconnect the connector (S4) from the steering sensor. D6 () D6 () Ignition S OFF REPLACE STEERI SENSOR (SEE PAGE 248 ) 5 CHECK CAN US LINE FOR SHORT TO +(YA RATE SENSOR, CANH) D Reconnect the connector (S4) to the steering sensor. Disconnect the connector (Y) from the yaw rate sensor. D6 () D6 () Ignition S OFF REPLACE YA RATE SENSOR (SEE PAGE 246 ) 208

4 DIAGNOSTICS CHECK CAN US LINE FOR SHORT TO +(SKID CONTROL ECU JUNCTION CONNECTOR, CANH) Junction Connector: J6 Reconnect the connector (Y) to the yaw rate sensor. Disconnect the wire harness connector (J6) from the junction connector. Disconnect the connector () from the skid control ECU. G25476 G2640 Skid Control ECU Connector Front View: (d) +S () (+S) Ignition S OFF E626 REPAIR OR REPLACE CAN MAIN US LINE OR CONNECTOR (SKID CONTROL ECU JUNC TION CONNECTOR, CANH) 20

5 05220 DIAGNOSTICS 7 CHECK CAN US LINE FOR SHORT TO +(STEERI SENSOR JUNCTION CONNECTOR, CANH) Steering Sensor ire Harness View: S4 G24 G262 Disconnect the connector (S4) from the steering sensor. Measure the resistance according to the values in the S4 () S4 () Ignition S OFF HINT: Check the wire harness connector connected to the junction connector while disconnecting it. REPAIR OR REPLACE CAN MAIN US LINE OR CONNECTOR (STEERI SENSOR JUNC TION CONNECTOR, CANH) REPAIR OR REPLACE YA RATE SENSOR SU US LINE OR CONNECTOR (CANH) 2