Dtc B1318 - Mazda 2002 6 Workshop Manual

PID Name
(Definition)
RF_WSPD
(Right front wheel-speed
sensor input)
LR_WSPD
(Left rear wheel-speed
sensor input)
RR_WSPD
(Right rear wheel-speed
sensor input)
ABS_VOLT
(System battery voltage
value)
Acrive Command Mode
Command Name
ABS_POWER Fail-safe relay
LR_OUTLET Left rear ABS pressure reduction solenoid valve
LR_INLET Left rear ABS pressure retention solenoid valve
RR_INLET Right rear ABS pressure retention solenoid valve
RR_OUTLET Right rear ABS pressure reduction solenoid valve
LF_INLET Left front ABS pressure retention solenoid valve
LF_OUTLET Left front ABS pressure reduction solenoid valve
RF_INLET Right front ABS pressure retention solenoid valve
RF_OUTLET Right front ABS pressure reduction solenoid valve
PMP_MOTOR ABS motor
VS_OUTPUT Vehicle speed signal output
End Of Sie

DTC B1318

Caution
• When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness connector, the SST (49 G066
001) must be used. (See
DTC B1318
DETECTION
• Low voltage is detected at the voltage monitor of solenoid valve monitor, or the motor monitor.
CONDITION
• Malfunction of fuse (SUS 15 A)
• Open or short to power circuit in harness between DSC HU/CM terminal G and battery positive terminal
POSSIBLE
• Open circuit in harness between body ground and ABS (ABS/TCS) HU/CM terminal A
CAUSE
• Battery and/or generator malfunction
P–50
ON-BOARD DIAGNOSTIC (ABS/TCS)
Unit/Condition Condition/Specification
• Vehicle is stopped: 0 KPH
{0 MPH}
KPH or MPH
• Vehicle is driving:
Indicates vehicle speed
• Vehicle is stopped: 0 KPH
{0 MPH}
KPH or MPH
• Vehicle is driving:
Indicates vehicle speed
• Vehicle is stopped: 0 KPH
{0 MPH}
KPH or MPH
• Vehicle is driving:
Indicates vehicle speed
• Ignition key at ON: B+
V
• Idle: Approx. 14—16 V
Definition
P–29 ABS (ABS/TCS) HU/CM
ABS (ABS/TCS) power supply
Action
Inspect wheel-speed
sensor/sensor rotor.
Inspect wheel-speed
sensor/sensor rotor.
Inspect wheel-speed
sensor/sensor rotor.
Inspect power supply circuit.
(See P–29 ABS (ABS/TCS)
HU/CM INSPECTION
Operation
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
SPEED
INSPECTION.)
ABS (ABS/
TCS) HU/CM/
CM terminal
D, G
C, F
A, B
Z
)
Note
Ignition key at ON
(Engine OFF), and
driving
A6E697567650W03