Otc C0166 Tcs Priming Line Valve Ckt Malfunction - GMC chervolet camaro 1999 Service Manual

Brakes
Antilock Brake System 5-191
OTC C0166 TCS Priming Line Valve CKT Malfunction
El
I
0.8PNK 739
30~: ~----~ C1
~
1~
I-
=
f - - - - - - - - - - -
i------------------,
1
1
:~~!
0
!~
Traction
I Voltage Voltage
I
l
Control
I .
Solenoid
Valve I
Module
i
--ru " " " " , . . . --
i
zMIEBTCM)
Relay COntrol Valve Control
: ---. ---. Groim :
~----------------------=-=-------~--------J
I
So1Emk1
Valve
I 15
C1
I I
~------------------------------J
Brake Pressure
Modulator Valve
(BPMV)
2 BU< 651
-=-
G101
Circuit Description Conditions for Clearing the DTC
213283
The TCS Prime valve solenoid circuits are supplied
with battery power when the ignition is in the RUN
position. The EBTCM controls the valve functions by
grounding the circuit when necessary.
• Condition for DTC is no longer present and scan
tool clear DTC function is used.
Conditions for Setting the DTC
The EBTCM senses a discrepancy such as an open,
short to ground, or short to voltage in the circuit.
Action Taken When the DTC Sets
• A malfunction DTC is stored.
• ABS!TCS disabled
• ABS!TCS Indicators are turned on.
• The Red BRAKE Warning Indicator turns on.
• 100 ignition cycles pass with no DTC detected.
Test Description
The numbers below refer to step numbers on the
Diagnostic Table.
2. This step determines if the DTC is current.