Dodge Ram Truck 1500-2500-3500. Manual — part 152

INTERMITTENT SIGNAL FROM RIGHT FRONT SENSOR — 27 (CONTINUED)

6.

WHEEL BEARING LOOSE/BINDING

Inspect the wheel bearings for excessive run out or improper clearance in accordance with the Service Information.

Were any problems found?

Yes

>> Repair as necessary in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES/ELECTRICAL - DIAGNOSIS AND
TESTING)

No

>> Go To 7

7.

RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO GROUND

Turn the ignition off.

Disconnect the Right Front Wheel Speed Sensor harness connector.

Disconnect the Controller Anti-lock Brake harness connector.

NOTE: Check connector - Clean/repair as necessary.
Measure the resistance between the Right Front Wheel Speed Sensor
(+) circuit and ground.

Is the resistance above 5.0 ohms?

Yes

>> Go To 8

No

>> Repair the Right Front Wheel Speed Sensor (+) circuit for

a short to ground.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

8.

RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT
SHORTED TO GROUND

Measure the resistance between the Right Front Wheel Speed Sensor
(-) circuit and ground.

Is the resistance above 5.0 ohms?

Yes

>> Go To 9

No

>> Repair the Right Front Wheel Speed Sensor (-) circuit for

a short to ground.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

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BRAKES - ABS - ELECTRICAL DIAGNOSTICS

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INTERMITTENT SIGNAL FROM RIGHT FRONT SENSOR — 27 (CONTINUED)

9.

RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT OPEN

Measure the resistance of the Right Front Wheel Speed Sensor (+)
circuit.

Is the resistance below 5.0 ohms?

Yes

>> Go To 10

No

>> Repair the open Right Front Wheel Speed Sensor (+) cir-

cuit.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

10.

RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT OPEN

Measure the resistance of the Right Front Wheel Speed Sensor (-) cir-
cuit.

Is the resistance below 5.0 ohms?

Yes

>> Go To 11

No

>> Repair the open Right Front Wheel Speed Sensor (-) cir-

cuit.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

DR/DH

BRAKES - ABS - ELECTRICAL DIAGNOSTICS

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INTERMITTENT SIGNAL FROM RIGHT FRONT SENSOR — 27 (CONTINUED)

11.

RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO VOLTAGE

Turn the ignition on.

Measure the voltage of the Right Front Wheel Speed Sensor (+) cir-
cuit.

Is there any voltage present?

Yes

>> Repair Right Front Wheel Speed Sensor (+) circuit for a

short to voltage.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

No

>> Go To 12

12.

RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT SHORTED TO VOLTAGE

Measure the voltage of the Right Front Wheel Speed Sensor (-) circuit.

Is there any voltage present?

Yes

>> Repair the Right Front Wheel Speed Sensor (-) circuit for

a short to voltage.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

No

>> Go To 13

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BRAKES - ABS - ELECTRICAL DIAGNOSTICS

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INTERMITTENT SIGNAL FROM RIGHT FRONT SENSOR — 27 (CONTINUED)

13.

RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO THE RIGHT FRONT WHEEL SPEED
SENSOR (-) CIRCUIT

Turn the ignition off.

Measure the resistance between the Right Front Wheel Speed Sensor
(+) circuit and the Right Front Wheel Speed Sensor (-) circuit at the
Controller Anti-lock Brake harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Repair Right Front Wheel Speed Sensor (+) circuit for a

short to the Right Front Wheel Speed Sensor (-) circuit.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES/ELECTRICAL - DIAGNOSIS AND TESTING)

No

>> Go To 14

14.

RIGHT FRONT WHEEL SPEED SENSOR

Turn the ignition off.

Connect the Right Front Wheel Speed Sensor harness connector.

Measure the resistance between the Right Front Wheel Speed Sensor (+) circuit and Right Front Wheel Speed
Sensor (-) circuit at the Controller Anti-lock Brake harness connector.

NOTE: The resistance should be approximately 1800–2200 ohms at 76 degrees F.

Is the resistance within the noted range?

Yes

>> Go to 15

No

>> Replace the Right Front Wheel Speed Sensor in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES/ELECTRICAL - DIAGNOSIS AND
TESTING)

15.

CONTROLLER ANTI-LOCK BRAKE

Turn the ignition off.

Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.

Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

>> Repair as necessary in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES/ELECTRICAL - DIAGNOSIS AND
TESTING)

No

>> Replace the Controller Anti-lock Brake in accordance with the Service Information.

Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES/ELECTRICAL - DIAGNOSIS AND
TESTING)

DR/DH

BRAKES - ABS - ELECTRICAL DIAGNOSTICS

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