GMC chevrolet camaro 2000 Service Manual page 635

5-162 Antilock .Brake System
Brakes
DTC C0070 RF ABS Solenoid #1 Circuit Malfunction
Power
Distribution
Systems
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Electronic Brake
Positive Positive
l
I
Control Module
Voltage Voltage I
(EBCM)
_ _ _ _ .......,.._ Solenoid Valve I
4
Control Relay
I
P"
4
I ~
I
Solenoid Valve
ill
Solenoid :
I
Relay Control Valve Control
I
---1 :
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I
Solenoid Valve
I 15 01
I I
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Circuit Description
Brake Pressure
Modulator Valve
{BPMV)
2 BLK 651
-;- G101
• ABS/TCS Indicators are turned on.
• The Red BRAKE Warning Indicator turns on.
Conditions for Clearing the DTC
519718
The Inlet valve solenoid circuits are supplied with
battery power when the ignition is in the run position.
The EBCM controls 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.
" ABS/TCS disabled
0
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 C0070 RF ABS Solenoid· #1 Circuit Malfunction
Step Action
Value(s)
Yes
No
Was the Diagnostic System Check performed?
Go to A
1
-
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,
-
Go to A
engine off.
Diagnostic
4. Using the scan tool run the Automated test.
System
Does OTC C0070 reset as a current OTC?
Go to Step 3 Check-ABS
Replace the EBCM. Refer to Electronic Brake Control GotoA
3
Module (EBCM) Replacement.
-
Diagnostic
-
Is the repair complete?
System
Check-ABS
(
(
(