Mazda 6 2002 - Page 616

ON-BOARD DIAGNOSTIC (ABS/TCS)
P59
P
DTC C1148, C1158, C1168, C1178, C1233, C1234, C1235, C1236
A6E697567650W11
Caution
•
••
• When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness connector, the SST (49 G066
001) must be used. (See P29 ABS (ABS/TCS) HU/CM INSPECTION.)
DTC
C1148, C1234
C1158, C1233
C1168, C1235
C1178, C1236
RF wheel-speed sensor/sensor rotor
LF wheel-speed sensor/sensor rotor
RR wheel-speed sensor/sensor rotor
LR wheel-speed sensor/sensor rotor
DETECTION
CONDITION
• C1148, C1158, C1168, C1178:
 Abnormal sensor output is detected on any of four vehicle wheels when the vehicle goes from start
to a speed of 10 km/h {6.2 mph}.
 Greater than specified amount of ABS demand occurs from front wheel sensors when vehicle is
started.
• C1234, C1233, C1235, C1236:
 Abnormal sensor output due to chipping of sensor rotor teeth, etc. is detected
 ABS control operates for 60 seconds or more
POSSIBLE
CAUSE
• Short to ground circuit of wheel-speed sensor(s) circuit
• Malfunction of ABC wheel-speed sensor(s)
• Damaged sensor rotor(s)
• Incorrect clearance between ABC wheel-speed sensor and sensor rotor
• Poor installation of ABC wheel speed sensor and/or sensor rotor (If the sensor rotor is installed twisted,
it may cause output of abnormal wave form at high speeds.)
• ABS (ABS/TCS) HU/CM internal damage (Solenoid valve malfunction, pump motor malfunction, or pipe
clogging)