Communication For Initializing Impossible - With Select Monitor

COMMUNICATION FOR INITIALIZING IMPOSSIBLE -SELECT MONITOR COMMUNICATION FAILURE-
DIAGNOSIS:
- Faulty harness connector
TROUBLE SYMPTOM:
- ABS warning light remains on.





WIRING DIAGRAM

10C1: CHECK IGNITION SWITCH.
CHECK : Is ignition switch ON?
YES : Go to step 10C2.
NO : Turn ignition switch to ON, and select brake control mode using the select monitor.

10C2: CHECK GENERATOR.
1. Start the engine.
2. Idle the engine.
3. Measure voltage between generator and chassis ground.





Terminals
Generator B terminal (+)-Chassis ground (-):
CHECK : Is the voltage between 10 and 15 V?
YES : Go to step 10C3.
NO : Repair generator.

10C3: CHECK BATTERY TERMINAL.
Turn ignition switch to OFF.
CHECK : Is there poor contact at battery terminal?
YES : Repair battery terminal.
NO : Go to step 10C4.

10C4: CHECK COMMUNICATION OF SELECT MONITOR.
Using the select monitor, check whether communication to other system (such as engine, AT, etc.) can be executed normally.
CHECK : Are the name and year of the system displayed on the select monitor?
YES : Go to step 10C5.
NO : Repair select monitor communication cable and connector.

10C5: CHECK INSTALLATION OF ABSCM & H/U CONNECTOR.
Turn ignition switch to OFF.
CHECK : Is ABSCM & H/U connector inserted into ABSCM & H/U until the clamp locks onto it?
YES : Go to step 10C6.
NO : Insert ABSCM & H/U connector into ABSCM & H/U until the clamp locks onto it.

10C6: CHECK POWER SUPPLY OF ABSCM & H/U.
1. Disconnect connector from ABSCM & H/U.
2. Start engine.
3. Idle the engine.
4. Measure voltage between ABSCM & H/U connector and chassis ground.





Connector & terminal
(F49) No. 1 (+)-Chassis ground (-):
CHECK : Is the voltage between 10 and 15 V?
YES : Go to step 10C7.
NO : Repair ABSCM & H/U power supply circuit.

10C7: CHECK GROUND CIRCUIT OF ABSCM & H/U.
1. Turn ignition switch to OFF.
2. Measure resistance between ABSCM & H/U connector and chassis ground.





Connector & terminal
(F49) No. 23-Chassis around:
CHECK : Is the resistance less than 0.5 ohms?
YES : Repair harness/connector between ABSCM & H/U and select monitor.
NO : Go to step 10C8.

10C8: CHECK HARNESS/CONNECTOR BETWEEN ABSCM & H/U AND DATA LINK CONNECTOR.
1. Turn ignition switch to OFF.
2. Measure resistance between ABSCM & H/U connector and data link connector.





Connector & terminal
(F49) No. 20-(B40) No. 5:
(F49J No. 5-(B40) No. 4:
CHECK : Is the resistance less than 0.5 ohms?
YES : Repair harness and connector between ABSCM & H/U and data link connector.
NO : Go to step 10C9.

10C9: CHECK POOR CONTACT IN CONNECTORS.
CHECK : Is there poor contact in connectors between ABSCM & H/U and data link connector?
YES : Repair connector.
NO : Replace ABSCM & H/U.