GMC chervolet camaro 1999 Service Manual page 627

5-152 Antilock Brake System Brakes
OTC COOSO RR Wheel Speed Circuit Malfunction (cont'd)
Step Action Value(s)
Yes No
Repair CKT 882 for an open or high resistance. Refer to
Repair Procedures Cell 5 in Electrical Diagnosis. If an
open or high resistance is found in the jumper harness,
9
replace the jumper harness. Refer to Wheel Speed Sensor
-
-
Jumper Harness Replacement (Rear with Traction
Control).
Is the repair complete? Go to Step 18
Using J 39200 DMM, measure the resistance between
terminal 3 of J 39700 and terminal A of the WSS harness
10
connector.
o-sn
Is the resistance within the range specified in the value(s)
column? Go to Step 12
Go to Step 11
Repair CKT 883 for an open or high resistance. Refer to
Repair Procedures Cell 5 in Electrical Diagnosis. If an
open or high resistance is found in the jumper harness,
11
replace the jumper harness. Refer to Wheel Speed Sensor
-
-
Jumper Harness Replacement (Rear with Traction
Control).
Is the repair complete? Go to Step 18
Malfunction is intermittent. Inspect all connectors and
harnesses for damage that may result in an open or high
12
resistance when connected. Refer to Repair Procedures -
-
Cell 5 in Electrical Diagnosis.
Is the repair complete?
Go to Step 18
1. Disconnect the Wheel Speed Sensor.
2. Turn the ignition switch to the RUN position,
engine off.
13
3. Using J 39200 DMM, measure the voltage at
Above 1V
terminal 1 of J 39700.
(
Is the voltage within the range specified in the value(s)
column? Go to Step 14 Go to Step 15
Repair CKT 882 for a short to voltage. Refer to Repair
Procedures Cell 5 in Electrical Diagnosis. If a short to
14
voltage is found in the jumper harness, replace the jumper
harness. Refer to Wheel Speed Sensor Jumper Harness
-
-
Replacement (Rear with Traction Control).
Is the repair complete? Go to Step 18
Using J 39200 DMM, measure the voltage at terminal 3
15
of J39700.
Above 1V
Is the voltage within the range specified in the value(s)
column?
Go to Step 16
Go to Step 17
Repair CKT 883 for a short to voltage. Refer to Repair
Procedures Cell 5 in Electrical Diagnosis. If a short to
16
voltage is found in the jumper harness, replace the jumper
harness. Refer to Wheel Speed Sensor Jumper Harness
-
-
Replacement (Rear with Traction Control).
Is the repair complete? Go to Step 18
Replace the EBTCM. Refer to Electronic Brake Control
Go to ABS
17
Module (EBCM) Replacement.
-
Diagnostic
-
Is the replacement complete? System Check
1. Reconnect all previously disconnected components.
2. Using a scan tool clear the DTC.
18
3. Remove the scan tool from the DLC.
-
4. Carefully drive the vehicle above 12 Km/h (8 mph) for
Go to ABS
several minutes.
Diagnostic
Does the OTC reset as a current OTC? Go to Step2 System Check