Otc C0110 Pump Motor Circuit Malfunction - GMC chevrolet camaro 2000 Service Manual

5-170 Antilock Brake System Brakes
DTC C011 O Pump Motor Circuit Malfunction
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SChematics
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G101
Circuit Description
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Brake Pressure
Modulator Valve
(BPMV)
.,.. G106
Conditions for Clearing the DTC
519720
The pump motor is an integral part of the BPMV, while
the pump motor relay is integral to the EBCM. The
pump motor relay is not engaged during normal
system operation. When ABS or TCS operation is
required the EBCM activates the pump motor relay and
battery power is provided to the pump motor.
• The. condition responsible for setting the DTC no
longer exists and the scan tool Clear DTCs
function is used.
Conditions for Setting the DTC
• Pump motor voltage is not present 60 milliseconds
after activation of the pump motor relay.
• Pump motor voltage is present for more than
2.5 seconds with no activation of the pump
motor relay.
• Pump motor voltage is not present for
40 milliseconds after the purnp motor relay is
commanded off.
Action Taken When the DTC Sets
• A malfunction DTC stores.
• The ABS!TCS disables.
" The amber ABS!TCS indicator(s) turn on.
• The Red BRAKE Warning indicator turns on.
• 1
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ignition cycles pass with no DTCs detected.
Important:
After the DTC is cleared using ignition
cycle default, the vehicle must .be driven above
12 Km/h (8 mph) for the ABS!TCS indicator(s) to
turn off.
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 for 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
(