GMC chervolet camaro 1999 Service Manual page 696

Brakes Antilock Brake System 5-221
DTC C0896 Device Voltage Range/Performance
iHotlnRUNi
p;i;:-il
Data
Link
L!..tiJ
Connector
{DLC)
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Underhood
I Power
I Distribution L4 ABSBATT1 L2 ABS BATT2 I
Electrical
I Cell 10 K4 MaxlFuse
®
K2 MaxlFuse Q3) I
Center 1
I 40A 50A I
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I H9 ABS
IGN Distribution
I
Electrical
I MiniFuse
®
Cell 10 I
Center 2
I HS
10A
I
I I
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3 RED 302 5RED 1802
O.SPNK 739
0.35~11132
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I Power
I
Distribution J11
I
Cel 10
- - - - , Underhood
ABS BATT I
Electrical
MinlFuse
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Center 1
J10 25A I
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.,Star
I
oataUnk
IC
Connector
onnector
I
Cell
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2BLK 651
0.35 LT BL~I1122
A3 C200D
0.35 LT BLU 1122
SORN 440
1C200A
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Battery - - - - iaii;,y- - - - - - - - - - -
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Electronic
I Positive Positive
POslllve Data
I
Brake
And
I
Voltage Voltage Voltage Line
I
Traction
I
Class 2
I
Control
I
I Mod1,Jle
I I
(EBCM/
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..1
EBTCM)
G101
Circuit Description
The EBCM/EBTCM is required to operate within a
specified range of voltage to function properly. During
ABS and TCS operation, there are current
requirements that will cause the voltage to drop.
Because of this, voltage is monitored out of ABS/TCS
control to indicate a good charging system condition,
and also during ABS/TCS control when voltage
may drop significantly. The EBCM/EBTCM also
monitors for high voltage conditions which could
damage the EBCM/EBTCM.
Conditions for Setting the DTC
• The EBCM/EBTCM operating voltage falls below
9.4 volts out of ABS/TCS control, or 8.8 volts
during ABS/TCS control.
• The EBCM/EBTCM operating voltage rises above
17.4volts.
• The low voltage or the high voltage is detected for
more than 500 milliseconds with the vehicle
speed above 6 km/h (3.6 mph).
Action Taken When the DTC Sets
• A malfunction DTC is. stored.
• The ABS and the Traction Control indicators are
turned on.
• The ABS/TCS is disabled.
• The Red BRAKE Warning indicator turns on.
.
, : ~
213303
Conditions for Clearing the DTC
• The condition for the DTC is no longer present,
the scan tool Clear DTCs function is used.
• 100 ignition cycles have passed with no DTCs
detected.
Diagnostic Aids
• It is very important that a thorough inspection of
the wiring and connectors be performed. Failure
to carefully and fully inspect wiring and connectors
may result in misdiagnosis, causing part
replacement with reappearance of the malfunction.
• Thoroughly inspect any circuitry that may be
causing the complaint tor the following conditions:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections
- Physical damage to the wiring harness
• The following conditions may cause an intermittent
malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation
• If an intermittent malfunction exists refer to
Troubleshooting Procedures Cell 4 in Electrical
Diagnosis for further diagnosis.