Otc C0166 Tcs Priming Line Valve Ckt Malfunction - GMC chevrolet camaro 2000 Service Manual

5'."'178 Antilock Brake System
Brakes
DTC C0166 TCS Priming Line Valve CKT Malfunction
Power
Distribution
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Systems
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0.8 PNK 739
3 ORN 440
14 8 C1
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1"
Jgnltio;;- - Banery
f - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - .,
Electronic Brake
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Positive Positive
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Control Module
I Voltage Voltage I
(EBCM)
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: Solenoid Valve
ill
Solenoid
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Relay Control Valve Control
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I Solenoid Valve I
15 Ci
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Circuit Description
Brake Pressure
Modulator Valve
(BPMV)
2 BLK 651
..,,. G·101
• ABSrrcs Indicators are turned on.
• The Red BRAKE Warning Indicator turns on.
Conditions for Clearing the DTC
519718
The TCS Prime valve solenoid circuits are supplied
with battery power when the ignition is in the RUN
position. The EBCM co.ntrols the valve functions by
grounding the circuit when necessary.
Conditions for Setting the DTC
• Condition for DTC is no longer present and scan
tool clear DTC function is used.
The EBCM 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.
.. ABSff CS disabled
.. 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.
DTC C 166 TCS P . .
0
nm ma
L' VI CKT M If me ave a unction
Step Action Value(s) Yes No
Was the Diagnostic System Check performed? Go to
A
1
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Diagnostic
System
Go to Step 2 Check-ABS
1. Turn the ignition switch to the OFF position.
2. Install a scan tool.
2
3. Turn the ignition switch to the RUN position,
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Go to A
engine off.
Diagnostic
4. Using the scan tool run the Automated test.
System
Does DTC C0166 reset as a current OTC? Go to Step 3 Check-ABS
Replace the EBCM. Refer to Electronic Brake Control Go to A
3
Module (EBCM) Replacement.
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Diagnostic
-
Is the repair complete?
System
Check-ABS
(
(