GMC chevrolet camaro 2000 Service Manual page 631

5~158 Antilock Brake System
Test Description
The number(s) below refer to the step number(s) on
the diagnostic table.
6. This step checks for the proper resistance in
the WSS.
7. This step checks for the proper WSS output.
DTC C0056 Rear Wheel Speed CKT Range/Performance
.•
Step Action Value(s)
Yes
Was the Diagnostic System Check performed?
1 -
Go to Step 2
2
Inspect the WSS for physical damage.
-
Is physical damage of the WSS evident? Go to Step 3
Replace the WSS. Refer to Wheel Speed Sensor
3
Replacement (With out Tractional Control).
-
Is the replacement complete?
Go to Step 16
4
Inspect the jumper harness for physical damage.
-
Is physical damage of the jumper harness evident?
Go to Step 5
Replace the jumper harness: Refer to Wheel Speed
5
Sensor Jumper Harness Replacement (Rear with out
Traction Control).
-
Is the replacement complete?
.·
Go
t9
Step 16
1. Disconnect the WSS connector directly at .the WSS.
2. Using J 39200 DMM, measure the resistance
6 between terminals A and B of the WSS. 763-1525
n
Is the resistance within the range specified in the value(s)
column?
Go to Step 7
1. With the J 39200 DMM still connected to the WSS
select the mV AC scale.
'
;
7
2. Spin the rear wheel as fast as you can by hand while
Above 100 mV
monitoring the AC output.
Is the AC voltage within the range specified in the value(s)
column?
Go to Step 8
Using J 39200 DMM, measure the resistance between the
8
WSS terminal A and ground.
OL (infinite)
Is the .resistance within the range specified in the value(s)
column?
... Go to Step 9
1. Disconnect the EBCM harness connector C1.
2. Install the J 39700 Universal Pinout Box using the
J 39700-530 cable adapter to the EBCM harness
9
connector Ci only.
OL (infinite)
3. Using J 39200 DMM, measure the resistance
between terminals 22 and 23 of J 39700.
Is the resistance within the range specified in the values
column?
Go
to Step 11
Repair short between CKT(s) 884 and 885. Refer to Wiring
Repairs. If a short between wheel speed circuits is found
10
in the jumper harness, replace the jumper harness. Refer
to Wheel Speed Sensor Jumper Harness Replacement
-
(Rear with out Traction Control).
Is the repair complete?
Go to Step 16
Brakes
(
No
Go to A
Diagnostic
System
Check-ABS
Go to Step 4
-
Go to Step 6
-
(
Go to Step 3
Go to Step 3
Go to Step 3
Go to Step 10
-
(