Otc C0901 Device #2 Voltage Low - GMC chevrolet camaro 2000 Service Manual

)
)
Brakes
Antilock Brake System 5-211
OTC C0901 Device #2 Voltage
low
I
Hot In RUN, BULB TEST And START
I
'" - - - - - - - - - - - ., Engine Wiring
HS
Power I
ABS IGN Distribution
I
Harness
MiniFuse® Cell 10
Junction
10
A
1
Block 2
I
---------J
P100
0.8 PNK 739
B C212
11
' " "i
9
1;io' ; ;" - - - - - - - - - - - - - - ' . "" .,
Accelerator
I
Positive
I
And Servo
I
Voltage · I
Control
1
.•Module
I
Ground Ground
1
(ASM)
.. -
-
-
-
-
-
-
-
....
- - -
- -
-
- -
,-
..
~
'
28 55
~
1 BLK/WHT 151
1 BLK/WHT 151
8209------'
Circuit Description
This circuit monitors the voltage level available to the
ASM. If the voltage drops below 7.5 volts, full
performance of the traction control system cannot be
guaranteed.
Conditions for Setting the DTC
DTC C0.901 can set anytime the ignition is in the
RUN position and ignition voltage is less than 7.5 volts
Action Taken When the DTC Sets
•. The TCS is disabled
~
The traction control indicator is turned on
Conditions for Clearing the DTC
• The condition for the DTC is no longer present
and the scan tool clear DTC function is used
• 100 ignition cycles have passed with no DTCs
detected
519750
Diagnostic Aids
• Thoroughly inspectthe wiring and the connectors.
Failure to carefully and fully.inspectthe wiring
and the connectors can re.suit in misdiagnosis.
Misdiagnosis may cause replacement of parts
without repairing the malfunction.
• Inspect for other low voltage conditions.
• Test the charging system. Refer to Symptoms -
Engine Electrical in Engine Electrical.
• The following conditions are other possible causes
of low system voltage:
- A charging system malfunction
- Excessive parasitic drain
- A weak battery
- A faulty system ground
• If an intermittent malfunction exists, refer to
Inducing Intermittent Fault Conditions in Electrical
Diagnosis;
Test Description
The numbers below refer to the step numbers on the
diagnostic table.
4. This step checks for a good ground.·
6. This step checks for proper voltage.