GMC chervolet camaro 1999 Service Manual page 632

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Brakes
Rear Wheel Speed Sensor Resistance
The following table contains resistance values tor the
rear wheel speed sensors at varying sensor
temperatures for use in diagnosis. The values are
approximate and should be used as a guideline
for diagnosis.
OTC C0055 Rear Wheel Speed
Circuit Malfunction
Sensor Sensor Sensor
Temperature Temperature Resistance
(OC} (OF}
(Ohms}
-34 to 4
-30 to 40
763 to 1110
5 to 43 41 to 110 908 to 1292
44 to 93 111 to 200 1057 to 1525
Antilock Brake System 5-157
Test Description
The numbers below refer to step numbers on the
diagnostic table.
6. This step checks for an open in the WSS or
WSSCKT.
13. Checks for a short to voltage in the WSS CKT.
15. Checks tor a short to voltage in the WSS CKT.
OTC C0055 Rear Wheel Speed Circuit Malfunction
Step Action
Value(s} Yes No
Was the Diagnostic System Check performed? Go to ABS
1
-
Diagnostic
Go to Step2
System Check
2
Inspect the WSS for physical damage.
-
Is physical damage of the WSS evident?
Go to Step 3 Go to Step 4
Replace the WSS. Refer to Wheel Speed Sensor
3
Replacement (Rear With Out Traction Control).
-
-
Is the replacement complete?
Go to Step 18
4
Inspect the jumper harness for physical damage.
-
Is physical damage of the jumper harness evident? Go to Step 5 Go to Step 6
Replace the jumper harness. Refer to Wheel Speed
5
Sensor Jumper Harness Replacement (Rear with out
-
-
Traction Control).
Is the replacement complete?
Go to Step 18
1. Turn the ignition switch to the OFF position.
2. Disconnect the EBCM connector C1.
3. Install the J 39700 Universal Pinout Box using the
6
J
39700 • 530 cable adapter to the EBCM harness
763-1525'1
connector C1 only.
4. Using J 39200 DMM, measure the resistance
between terminals 22 and 23 of J 39700.
Is the resistance within the range specified in the value(s)
column? Go to Step 13 Go to Step 7
1. Disconnect the Wheel Speed Sensor.
2. Using J 39200 DMM, measure the resistance
7
between terminals A and B of the Wheel Speed
763-1525'1
Sensor Connector.
Is the resistance within the range specified in the value(s)
column?
Go to Step 8 Go to Step 3
Using J 39200 DMM, measure the resistance between
terminal 22 of J 39700 and terminal A of the WSS harness
8
connector. 0-5Q
Is the resistance within the range specified in the value(s)
column? .
Go to Step 10
Go to Step 9