Chrysler Concorde 2004 Service Manual page 1116

BRAKES (CAB)
LEFT FRONT SENSOR CIRCUIT FAILURE —
CAB - 12 VOLT SUPPLY CIRCUIT FAULT
CAB - SIGNAL CIRCUIT FAULT
WHEEL SPEED SENSOR 12 VOLT SUPPLY SHORT TO GROUND
WHEEL SPEED SENSOR SIGNAL CIRCUIT INOPERATIVE
TEST
1 Turn the ignition on.
With the DRBIII , read DTCs.
With the DRBIII , read the Freeze Frame information.
With the DRBIII , erase DTCs.
Turn the ignition off.
Turn the ignition on.
With the DRBIII , read DTCs.
NOTE: The CAB must sense all four wheels at 25km/h (15 mph) before it will
extinguish the ABS indicators.
Does the DRBIII display SENSOR CIRCUIT FAILURE?
Yes → Go To 2
→ Go To 13
No
2 Turn the ignition off.
Inspect the CAB connector, affected Wheel Speed Sensor, and affected Wheel Speed
Sensor connector.
Is the affected Wheel Speed Sensor or any of the connectors damaged?
Yes → Repair as necessary.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the affected Wheel Speed Sensor connector.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage between affected Wheel Speed Sensor 12 Volt Supply circuit and
ground.
Is the voltage above 10 volts?
Yes → Go To 6
→ Go To 4
No
4 Turn the ignition off.
Disconnect the CAB harness connector.
Disconnect the affected Wheel Speed Sensor connector.
Using a 12-volt test light connected to 12-volts, probe the affected Wheel Speed
Sensor 12 Volt Supply circuit.
Does the test light illuminate?
Yes → Repair the affected Wheel Speed Sensor 12 Volt Supply circuit for
→ Go To 5
No
POSSIBLE CAUSES
ACTION
Perform ABS VERIFICATION TEST - VER 1.
a short to ground.
Perform ABS VERIFICATION TEST - VER 1.
Continued
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APPLICABILITY
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All
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