Chrysler RG Voyager. Manual — part 354
POSSIBLE CAUSES
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
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTCs.
With the DRBIII
t, read the Freeze Frame information.
With the DRBIII
t, erase DTCs.
Turn the ignition off.
Turn the ignition on.
With the DRBIII
t, 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
t display SENSOR CIRCUIT FAILURE?
All
Yes
→ Go To 2
No
→ Go To 13
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?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 3
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?
All
Yes
→ Go To 6
No
→ Go To 4
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?
All
Yes
→ Repair the affected Wheel Speed Sensor 12 Volt Supply circuit for
a short to ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 5
17
BRAKES (20E)
LEFT FRONT SENSOR CIRCUIT FAILURE —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the CAB harness connector.
Disconnect the affected Wheel Speed Sensor connector.
Connect a jumper wire between affected Wheel Speed Sensor 12 Volt Supply circuit
and ground.
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?
All
Yes
→ Go To 6
No
→ Repair the affected Wheel Speed Sensor 12 Volt Supply circuit for
an open.
Perform ABS VERIFICATION TEST - VER 1.
6
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 Signal circuit and ground.
Is the voltage above 1 volt?
All
Yes
→ Repair the affected Wheel Speed Sensor Signal circuit for a short
to voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 7
7
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 Signal circuit.
Does the test light illuminate?
All
Yes
→ Repair the affected Wheel Speed Sensor Signal circuit for a short
to ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 8
8
Turn the ignition off.
Disconnect the CAB harness connector.
Disconnect the affected Wheel Speed Sensor connector.
Connect a jumper wire between affected Wheel Speed Sensor Signal circuit and
ground.
Using a 12-volt test light connected to 12-volts, probe the affected Wheel Speed
Sensor Signal circuit.
Does the test light illuminate?
All
Yes
→ Go To 9
No
→ Repair the affected Wheel Speed Sensor Signal circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
18
BRAKES (20E)
LEFT FRONT SENSOR CIRCUIT FAILURE —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Remove the CAB harness strain relief to access wires.
Reconnect the CAB harness connector.
Turn the ignition on.
Measure the voltage between affected Wheel Speed Sensor 12 Volt Supply circuit and
ground.
Is the voltage above 10 volts?
All
Yes
→ Go To 10
No
→ Replace the Controller Antilock Brake in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Remove the CAB harness strain relief to access wires.
Reconnect the CAB harness connector.
Turn the ignition on.
Measure the voltage between affected Wheel Speed Sensor 12 Volt Supply circuit and
affected Wheel Speed Sensor Signal circuit.
Is the voltage above 10 volts?
All
Yes
→ Go To 11
No
→ Replace the Controller Antilock Brake in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
11
Turn the ignition off.
Reconnect ALL affected Wheel Speed Sensor circuit connectors.
Disconnect the affected Wheel Speed Sensor connector.
Turn the ignition on.
Measure the voltage of the affected Wheel Speed Sensor 12 Volt Supply circuit in the
affected Wheel Speed Sensor connector while reconnecting the sensor connector.
Did the affected Wheel Speed Sensor 12 Volt Supply circuit drop voltage to 0 DC
volts?
All
Yes
→ Replace the affected Wheel Speed Sensor in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 12
12
Turn the ignition off.
Reconnect ALL affected Wheel Speed Sensor circuit connectors.
Turn the ignition on.
Measure the DC voltage of the Wheel Speed Sensor Signal circuit in the affected
Wheel Speed Sensor connector.
Slowly rotate the wheel.
Does the DC voltage toggle between 1.6 volts to .8 volts?
All
Yes
→ Go To 13
No
→ Replace the affected Wheel Speed Sensor in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
19
BRAKES (20E)
LEFT FRONT SENSOR CIRCUIT FAILURE —
Continued
TEST
ACTION
APPLICABILITY
13
Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Refer to any Hotline letters or Technical Service Bulletins that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Test Complete.
20
BRAKES (20E)
LEFT FRONT SENSOR CIRCUIT FAILURE —
Continued
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