Mazda 2002 6 Workshop Manual page 644

DTC
WDS or
equiva-
lent
C1246 Right rear pressure reduction solenoid valve
C1250 Left rear pressure retention solenoid valve
C1254 Right rear ABS pressure retention solenoid valve
C1266 Fail-safe relay
C1414 ABS (ABS/TCS) HU/CM
C1508 ABS/TCS HU/CM
C1510 Right front solenoid valve, motor or wheel-speed
sensor/sensor rotor
C1511 Left front solenoid valve, motor or wheel-speed sensor/
sensor rotor
C1512 Right rear solenoid valve, motor or wheel-speed
sensor/sensor rotor
C1513 Left rear solenoid valve, motor or wheel-speed sensor/
sensor rotor
U1900 Can communication
U2021 Invalid/fault data received
U2516 Can communication
PID/DATA Monitor Table
PID Name
(Definition)
RPM
(Engine speed signal
input)
CCNTABS
(Number of continuous
codes)
PMPSTAT
(Pump motor output state)
BOO_ABS
(Brake pedal switch input)
ABS_LAMP
(ABS warning light driver
output state)
BRAKE_LMP
(BRAKE system warning
light output state)
ABSRR_O
(Right rear ABS pressure
reduction solenoid valve
output state)
P–48
ON-BOARD DIAGNOSTIC (ABS/TCS)
Diagnosis system component
Unit/Condition Condition/Specification
• Engine is stopped: 0 RPM
• Engine is running:
RPM
Indicates engine speed
DTC is detected: 1—255
—
DTC is not detected: 0
• Pump motor is activated:
ON
ON/OFF
• Pump motor is
deactivated: OFF
• Brake pedal is depressed:
ON
ON/OFF
• Brake pedal is released:
OFF
• ABS warning light is
illuminated: ON
ON/OFF
• ABS warning light is not
illuminated: OFF
• BRAKE system warning
light is illuminated: ON
• BRAKE system warning
ON/OFF
light is not illuminated:
OFF
• During ABS control: ON/
OFF
(solenoid valve is
ON/OFF activated/deactivated)
• Not ABS control: OFF
(solenoid valve is
deactivated)
Page
(See P–63 DTC C1194, C1198, C1210, C1214,
C1242, C1246, C1250, C1254)
(See P–63 DTC C1194, C1198, C1210, C1214,
C1242, C1246, C1250, C1254)
(See P–63 DTC C1194, C1198, C1210, C1214,
C1242, C1246, C1250, C1254)
(See P–63 DTC C1194, C1198, C1210, C1214,
C1242, C1246, C1250, C1254
(See P–64 DTC C1414 )
(See P–64 DTC C1508 )
(See P–64 DTC C1510, C1511, C1512, C1513
(See P–64 DTC C1510, C1511, C1512, C1513
(See P–64 DTC C1510, C1511, C1512, C1513
(See P–64 DTC C1510, C1511, C1512, C1513
(See T–144 DTC U0073, U1900, U2516
(See P–65 DTC U2021 )
(See T–144 DTC U0073, U1900, U2516
Action
Inspect PCM.
Perform inspection using
appropriate DTC.
Inspect ABS (ABS/TCS)
HU/CM.
(See P–27 ABS (ABS/TCS)
HU/CM SYSTEM
INSPECTION )
Inspect brake switch.
Inspect ABS warning light.
Inspect BRAKE system
warning light.
Internal fault of ABS (ABS/
TCS) HU/CM. Replace ABS
(ABS/TCS) HU/CM.
(See P–28 ABS (ABS/TCS)
HU/CM REMOVAL/
INSTALLATION)
)
)
)
)
)
)
)
ABS (ABS/
TCS) HU/CM/
CM terminal
—
—
—
Y
—
—
—