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DTC B1317, B1318 [APPLIED VIN (ASSUMED): JM0 DY10Y100 100001-108401, JM6 DY10*100 100001-109000]

id0402a3800300

DTC | B1317, B1318 | ABS power supply
DETECTION CONDITION | • Low voltage and high voltage are detected at the voltage monitor of solenoid valve monitor, or the motor monitor
POSSIBLE CAUSE | • Malfunction of fuse (ABS-P (30 A), ABS-V (20 A), SAS (10 A)) • Open or short circuit in harness between ABS HU/CM terminal AK and battery positive terminal • Open or short circuit in harness between ABS HU/CM terminal AU and battery positive terminal • Open or short circuit in harness between ABS HU/CM terminal AT and battery positive terminal • Open circuit in harness between body ground and ABS HU/CM terminal A • Open circuit in harness between body ground and ABS HU/CM terminal B • Battery and/or generator malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT BATTERY VOLTAGE • Is battery terminal voltage normal? | Yes | Make sure that battery terminal connection is okay. Go to next step.
No | Charge or replace battery, then go to Step 6.
2 | INSPECT BATTERY GRAVITY • Is battery specific gravity as specified? | Yes | Go to next step.
No | Replace battery, then go to Step 6.
3 | INSPECT CHARGING SYSTEM • Are generator and drive belt tension normal? | Yes | Go to next step.
No | Adjust drive belt tension as necessary. Replace generator and/or drive belt as necessary. Go to step 6.
4 | INSPECT ABS HU/CM POWER SUPPLY CIRCUIT FOR OPEN OR SHORT CIRCUIT • Start engine. • Measure voltage between below connectors of ABS HU/CM connectors (harness side) and grounds. - ABS HU/CM: AK-ground - ABS HU/CM: AU-ground - ABS HU/CM: AT-ground • Is voltage above 10 V? | Yes | Go to next step.
No | Repair or replace harness for open circuit between ABS HU/CM and ground, then go to Step 6.
5 | INSPECT ABS HU/CM GROUND CIRCUIT FOR POOR GROUND OR OPEN CIRCUIT • Turn ignition key to OFF. • Measure resistance between below connectors of ABS HU/CM connectors (harness side) and grounds. - ABS HU/CM: A-ground - ABS HU/CM: B-ground • Is resistance within 0-1 ohm? | Yes | Go to next step.
No | If there is no continuity: • Repair or replace harness for open circuit between ABS HU/CM and ground, then go to next step. If resistance is not within 0-1 ohm: • Repair or replace harness for poor ground then go to next step.
6 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory. (See Clearing DTCs Procedures) • Is same DTC present? | Yes | Replace ABS CM, then go to next step.
No | Go to next step.
7 | VERIFY AFTER REPAIR PROCEDURE • Is there any other DTC present? | Yes | Go to applicable DTC inspection.
No | Troubleshooting completed.