#
ABS ON-BOARD DIAGNOSIS [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-]

id0402a4875600

## On-Board Diagnostic (OBD) Test Description

• The OBD test inspects the integrity and function of the ABS and outputs the results when requested by the specific tests.
• On-board diagnostic test also:

  - Provides a quick inspection of the ABS usually performed at the start of each diagnostic procedure.
  - Provides verification after repairs to ensure that no other faults occurred during service.

• The OBD test is divided into 3 tests:

  - Read/clear diagnostic results, PID monitor and record and active command modes.

### Read/clear diagnostic results

  • This function allows you to read or clear DTCs in the ABS HU/CM memory.

### PID/data monitor and record

  • This function allows you to access certain data values, input signals, calculated values, and system status information.

### Active command modes

  • This function allows you to control devices through the WDS or equivalent.

## Reading DTCs Procedure

1. Connect WDS or equivalent to the vehicle DLC-2 connector.

2. Retrieve DTC by WDS or equivalent.

## Clearing DTCs Procedures

1. After repairs have been made, perform the DTCs reading procedure.

2. Erase DTC by WDS or equivalent.

3. Ensure that the customer's concern has been resolved.

## PID/Data Monitor and Record Procedure

1. Connect WDS or equivalent to the vehicle DLC-2 connector.

2. Access and monitor PIDs by WDS or equivalent.

## Active Command Modes Procedure

1. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector.

2. Turn the ignition switch to ON (Engine OFF) or start engine.

3. Activate active command modes using WDS or equivalent.

## DTC Table

DTC | Diagnosis system component | Page
--- | --- | ---
WDS or equiva- lent
B1317 | ABS power supply | (See DTC B1317, B1318 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
B1318 | ABS power supply | (See DTC B1317, B1318 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
B1342 | ABS HU/CM | (See DTC B1342 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1095 | Motor relay, pump motor | (See DTC C1095 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1141 | Left front ABS sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1142 | Right front ABS sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1143 | Left rear ABS sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1144 | Right rear ABS sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1145 | Right front ABS wheel-speed sensor | (See DTC C1145, C1155, C1165, C1175 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1155 | Left front ABS wheel-speed sensor | (See DTC C1145, C1155, C1165, C1175 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1165 | Right rear ABS wheel-speed sensor | (See DTC C1145, C1155, C1165, C1175 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1175 | Left rear ABS wheel-speed sensor | (See DTC C1145, C1155, C1165, C1175 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1233 | Left front ABS wheel-speed sensor/sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1234 | Right front ABS wheel-speed sensor/sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1235 | Right rear ABS wheel-speed sensor/sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1236 | Left rear ABS wheel-speed sensor/sensor rotor | (See DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1267 | ABS control | (See DTC C1267 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
C1446 | Brake light switch | (See DTC C1446 [APPLIED VIN (ASSUMED): JM0 DY10Y100 108402-, JM6 DY10*100 109001-].)
U2523 | CAN line | (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM])

## PID/DATA Monitor Table

PID Name (Definition) | Unit/Condition | Condition/Specification | Action | ABS HU/CM terminal
--- | --- | --- | --- | ---
BOO_ABS (Brake pedal switch input) | On/Off | • Brake pedal is depressed: On • Brake pedal is released: Off | Inspect brake switch. | V
CCNTABS (Number of continuous codes) | - | • DTC is detected: 1-255 • DTC is not detected: 0 | Perform inspection using appropriate DTC. | -
LF_WSPD (Left front ABS wheel-speed sensor input) | KPH or MPH | • Vehicle is stopped: 0 KPH {0 MPH} • Vehicle is driving: Indicates vehicle speed | Inspect LF ABS wheel-speed sensor/sensor rotor. | I, K
LR_WSPD (Left rear ABS wheel-speed sensor input) | KPH or MPH | • Vehicle is stopped: 0 KPH {0 MPH} • Vehicle is driving: Indicates vehicle speed | Inspect LR ABS wheel-speed sensor/sensor rotor. | U, W
RF_WSPD (Right front ABS wheel-speed sensor input) | KPH or MPH | • Vehicle is stopped: 0 KPH {0 MPH} • Vehicle is driving: Indicates vehicle speed | Inspect RF ABS wheel-speed sensor/sensor rotor. | Q, O
RR_WSPD (Right rear ABS wheel-speed sensor input) | KPH or MPH | • Vehicle is stopped: 0 KPH {0 MPH} • Vehicle is driving: Indicates vehicle speed | Inspect RR ABS wheel-speed sensor/sensor rotor. | E, C

## Active Command Modes Table

Command Name | Definition | Operation | Note
--- | --- | --- | ---
PMP_MOTOR | ABS motor | On/Off | Ignition key at ON (Engine running, vehicle is not moving)
LF_INLET | Left front ABS pressure retention solenoid valve | On/Off
LF_OUTLET | Left front ABS pressure reduction solenoid valve | On/Off
LR_OUTLET | Left rear ABS pressure reduction solenoid valve | On/Off
LR_INLET | Left rear ABS pressure retention solenoid valve | On/Off
RF_INLET | Right front ABS pressure retention solenoid valve | On/Off
RF_OUTLET | Right front ABS pressure reduction solenoid valve | On/Off
RR_INLET | Right rear ABS pressure retention solenoid valve | On/Off
RR_OUTLET | Right rear ABS pressure reduction solenoid valve | On/Off