GMC chervolet camaro 1999 Service Manual page 699

5-224 Antiloc.k Brake System Brakes
OTC C0901 Device #2 Voltage Low
Step
Action Value(s) Yes
No
Go to ABS
1
Was the Diagnostic System Check performed?
-
Go to Step2 Diagnostic
System Check
Check the Charging System. Refer to Charging System
Go to Charging
2
Check in Engine Electrical.
-
Go to Step3 System Check in
Is the charging system OK?
Engine Electrical
1. Tum the ignition switch to the OFF position.
2. Disconnect the ASM harness connector.
3
3. Inspect the ASM harness connector and the
-
Go to Step 7 Go to Step4
connector for damage or corrosion.
Is there any evidence of damage or corrosion?
Using the J 39200 DMM, measure the resistance between
4
the ASM harness connector terminal 28 and a good
0-50
Go to Step5 Go to StepB
ground.
Is the resistance within specifications?
Using the
J
39200 DMM, measure the resistance between
5
the ASM harness connector terminal 55 and a good
0-50 Go to Step6 Go to StepB
ground.
I' s the resistance within specifications?
1. Turn the ignition switch to the RUN position with the
engine off.
Go to Battery
6 2. Measure the voltage between the ASM harness
More than 7.5 V
Go to Step 9
Charging in
connector terminals 1 and 28.
Engine Electrical
Is the voltage within specifications?
Repair as necessary.
Go to ABS
7
-
Diagnostic
-
Are the repairs complete?
System Check
(
Repair the open or high resistance in CKT 151. Refer to
Go to ABS
8
Repair Procedures Cell 5 in Electrical Diagnosis.
-
Diagnostic
-
Is the circuit repair complete?
System Check
Replace the EBTCM. Refer to Electronic Brake Control
Go to ABS
9
Module (EBCM) Replacement.
-
Diagnostic
-
Is the replacement complete?
System Check
(