#
ON-BOARD DIAGNOSTIC SYSTEM FUNCTION

BME040267650T02

## Diagnostic Trouble Code (DTC) Function

DTC List

X: Available

Part name | DTC | Detection condition | Memory
--- | --- | --- | ---
WDS or equivalent | ABS warning light
ABS (ABS/TCS) HU/CM | B1342 | 61 | The on-board diagnostic system detects a control module malfunction. | X
ABS (ABS/TCS) HU/CM power supply | B1318 | 63 | Voltage at Z terminal of ABS/TCS HU/CM drops approx. below 10 V when driving vehicle. | X
PCM and/or engine speed signal line | C1117* | 17* | Engine speed 0 rpm and vehicle speed 10 km/h {6.2 mph} continues for specified time. | X
PCM and/or torque reduction request signal line | C1118* | 82* | After engine is warmed up, the signal that indicates torque reduction signal malfunction or engine control system malfunction is sent from PCM. | X
Torque reduction inhibit signal line | C1119* | 83* | After engine is started, malfunction of torque reduction inhibit signal line is detected. | X
Right front ABS wheel-speed sensor and/or ABS sensor rotor | C1145 | 11 | When open or short circuit is detected. | X
C1148 | 41 | ABS wheel speed signal is out of specification while vehicle is starting to move. | X
C1234 | 45 | ABS wheel speed signal malfunction (distortion/sudden change) is detected during driving. | X
Left front ABS wheel-speed sensor and/or ABS sensor rotor | C1155 | 12 | When open or short circuit is detected. | X
C1158 | 42 | ABS wheel speed signal is out of specification while vehicle is starting to move. | X
C1233 | 46 | ABS wheel speed signal malfunction (distortion/sudden change) is detected during driving. | X
Right rear ABS wheel-speed sensor and/or ABS sensor rotor | C1165 | 13 | When open or short circuit is detected. | X
C1168 | 43 | ABS wheel speed signal is out of specification while vehicle is starting to move. | X
C1235 | 47 | ABS wheel speed signal malfunction (distortion/sudden change) is detected during driving. | X
Left rear ABS wheel-speed sensor and/or ABS sensor rotor | C1175 | 14 | When open or short circuit is detected. | X
C1178 | 44 | ABS wheel speed signal is out of specification while vehicle is starting to move. | X
C1236 | 48 | ABS wheel speed signal malfunction (distortion/sudden change) is detected during driving. | X
Right front solenoid valve | C1210 | 22 | Outlet | Solenoid monitor signal does not track in response to solenoid ON/OFF command. | X
C1214 | 23 | Inlet | X
Left front solenoid valve | C1194 | 24 | Outlet | X
C1198 | 25 | Inlet | X
Right rear solenoid valve | C1246 | 26 | Outlet | X
C1254 | 27 | Inlet | X
Left rear solenoid valve | C1242 | 28 | Outlet | X
C1250 | 29 | Inlet | X
Fail-safe relay | C1186 | 51 | Fail-safe relay in ABS/TCS HU/CM stuck at OFF when ignition switch is turned ON, fail-safe relay ON is command. | X
C1266 | 52 | Fail-safe relay in ABS/TCS HU/CM stuck at ON when ignition switch is turned ON, fail-safe relay OFF is command. | X
ABS motor and/or ABS motor relay | C1095 | 54 | ABS motor stuck at ON when vehicle is started or during ABS operation, ABS motor OFF is command. | X
C1096 | 53 | ABS motor stuck at OFF when vehicle is started or during ABS operation, ABS motor ON is command. | X
ABS (ABS/TCS) HU/CM (Pump) | C1140 | 30 | Locking of right front and left rear wheels, or left front and right rear wheels is detected during ABS operation. | X
Solenoid valve, ABS motor, ABS wheel-speed sensor/sensor rotor | C1510 | 32 | Wheel lock is detected during ABS operation (pressure reduction inoperative). | X
C1511 | 33 | X
C1512 | 34 | X
C1513 | 35 | X
Engine coolant temperature | U2021* | 87* | After engine is warmed up, engine coolant temperature is 0 °C {32 °F} or less, and TCS operation is inhibited by PCM. | N/A

  *:
With TCS

## Fail-safe Function

• When the malfunction detection function determines a malfunction, each light illuminates to advise the driver. At this time, the fail-safe function controls the ABS, EBD and TCS* as shown in the fail-safe function malfunction contents table.

*: Only vehicles with TCS

  Warning

  • If EBD control is suspended the rear wheels could lock-up before the front wheels. If this occurs, the vehicle could swerve and become unstable. Therefore always inspect the system immediately if EBD control is suspended.

Fail-safe Function Malfunction Contents

Malfunction location | DTC | Fail-safe function
--- | --- | ---
WDS or equivalent | ABS warning light | Warning light illumination condition | Control condition
ABS warning light | BRAKE system warning light (when parking brake is released) | TCS OFF light*1 | TCS indicator light*1 | ABS control | EBD control | TCS control *1
Solenoid valve system | C1210 | 22 | Illuminated *2, *3 | Illuminated *2, *3 | Illuminated | Illuminated | Control disabled | Control disabled *4 | Control disabled
C1214 | 23
C1194 | 24
C1198 | 25
C1246 | 26
C1254 | 27
C1242 | 28
C1250 | 29
Fail-safe relay | C1266 | 52 | Illuminated | Not Illuminated | Illuminated | Illuminated | Control disabled | Control enabled | Control disabled
C1186 | 51 | Illuminated | Control disabled
ABS motor and ABS motor relay system | C1096 | 53 | Illuminated *2 | Not illuminated | Illuminated | Illuminated | Control disabled | Control enabled | Control disabled
C1095 | 54
ABS wheel-speed sensor/sensor rotor system | C1145 | 11 | Illuminated | Not illuminated *5 | Illuminated *2 | Illuminated *2 | Control disabled | Control enabled *6 | Control disabled
C1155 | 12
C1165 | 13
C1175 | 14
C1148 | 41 | Illuminated *2
C1158 | 42
C1168 | 43
C1178 | 44
C1234 | 45
C1233 | 46
C1235 | 47
C1236 | 48
Solenoid valve, ABS motor, ABS wheel-speed sensor/sensor rotor system | C1510 | 32 | Illuminated | Not illuminated | Illuminated | Illuminated | Control disabled | Control enabled | Control disabled
C1511 | 33
C1512 | 34 | Illuminated | Control enabled *6
C1513 | 35
ABS (ABS/TCS) HU/CM (Pump) | C1140 | 30 | Illuminated | Not illuminated | Illuminated | Illuminated | Control disabled | Control enabled | Control disabled
Power supply system | B1318 | 63 | Illuminated *7 | Illuminated *7 | Illuminated *7 | Not illuminated | Control enabled | Control enabled | Control enabled
ABS (ABS/TCS) HU/CM (CM) | B1342 | 61 | Illuminated | Illuminated | Illuminated | Illuminated | Control disabled | Control disabled | Control disabled
PCM and/or engine speed signal line | C1117*1 | 17*1 | Not Illuminated | Not Illuminated | Illuminated | Illuminated | Control enabled | Control enabled | Control disabled
PCM and/or torque reduction request signal line | C1118*1 | 82*1 | Not Illuminated | Not Illuminated | Illuminated | Illuminated | Control enabled | Control enabled | Control disabled
Torque reduction inhibit signal line | C1119*1 | 83*1 | Not Illuminated | Not Illuminated | Illuminated | Illuminated | Control enabled | Control enabled | Control disabled
Engine coolant temperature | U2021*1 | 87*1 | Not Illuminated | Not Illuminated | Illuminated *8 | Not Illuminated | Control enabled | Control enabled | Control disabled

  *1:
With TCS
  *2:
If a malfunction was detected in the previous driving mode, the light remains illuminated until the system is verified to be normal when the vehicle is driven at a speed of 10 km/h {6.2 mph} or more.
  *3:
The warning light does not illuminate during a front solenoid valve OFF malfunction (Inlet solenoid valve is stuck open; Outlet solenoid valve is stuck closed).
  *4:
Control continues only during a front solenoid valve OFF malfunction (Inlet solenoid valve is stuck open; Outlet solenoid valve is stuck closed).
  *5:
Illuminates during rear wheel malfunction.
  *6:
Suspends control when there is malfunction in both rear wheels.
  *7:
The light will go out when the failure is solved.
  *8:
When engine coolant temperature is 0 °C {32 °F} or less, and TCS operation is inhibited by PCM. DTC is not stored. When engine coolant temperature rises and TCS OFF light goes out, the system is normal.