Jeep WG Grand Cherokee 2002, Руководство по обслуживанию

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Symptom:
RIGHT REAR SENSOR SIGNAL FAILURE
When Monitored and Set Condition:
RIGHT REAR SENSOR SIGNAL FAILURE
When Monitored: Wheel speed comparison is checked at drive off or every 7 milliseconds
(ms). Wheel speed circuit continuity is checked every 7 milliseconds. Wheel speed phase
length supervision is checked every 7 milliseconds.
Set Condition: If, during an ABS stop, the CAB commands any valve solenoid on for an
extended length of time, and does not see a corresponding wheel speed change, the
Diagnostic Trouble Code (DTC) is set. The DTC can also set if the signal is missing or
erratic.
POSSIBLE CAUSES
RIGHT REAR WHEEL SPEED SENSOR OR CONNECTOR DAMAGED
TONE WHEEL DAMAGED
RIGHT REAR WHEEL SPEED SENSOR AIR GAP OUT OF SPECIFICATION
WHEEL BEARINGS OUT OF SPECIFICATION
RIGHT REAR WHEEL SPEED SENSOR INOPERATIVE
CAB - WON’T RESPOND TO WHEEL SPEED SENSOR SIGNAL
INTERMITTENT SIGNAL DTC
TEST ACTION APPLICABILITY
1 Turn the ignition on.
While an assistant drives, use the DRBIII
t
to monitor all Wheel Speed Sensors.
Slowly accelerate as straight as possible from a stop to 24 Km/h (15 Mph).
With the DRBIII
t
, monitor all wheel speed sensors.
Is Right Rear WSS Signal 0 Km/h (0 Mph) or differing from others by more than
5kmh (3mph)?
All
Yes
→
Go To 2
No
→
Go To 7
2 Turn the ignition off.
Inspect the Right Rear Wheel Speed Sensor and Connector.
Is the Sensor or Connector damaged? All
Yes
→
Repair as necessary. The CAB must sense all four wheels at 25
km/h (15 mph) before it will extinguish the ABS Indicator.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To 3
54
BRAKES (CAB)
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