GMC chervolet camaro 1999 Service Manual page 670

Brakes
Antilock Brake System 5·195
OTC C0181 Throttle Reduction Motor CKT Malfunction
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - , Accelerator
I And Servo
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Module (ASM)
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8204
2WHT 560
$205
2 GRY 561
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F C212
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Accelerator
Control And
Adjuster
Circuit Description
Identifies an adjuster assembly motor circuit that is
shorted to ground, shorted to voltage, or an open
circuit. This malfunction will not allow the adjuster
assembly motor to be controlled at the commanded
current rate or will cause the driver circuit to allow
current directly to ground.
Conditions for Setting the OTC
DTC C0181 can set anytime the ignition switch is in
the RUN position and the EBTCM detects an
open, short to ground, or a short to voltage.
Action Taken When the OTC Sets
- A malfunction DTC stores
- The TCS disables
- The amber TCS indicator turns on
Conditions for Clearing the OTC
• The condition responsible for setting the OTC no
longer exists and the scan tool Clear DTCs
function is used.
• 100 ignition cycles pass with no OT Cs detected.
213284
Diagnostic Aids
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
The following conditions may cause an intermittent
malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation
If an intermittent malfunction exists refer to
Troubleshooting Procedures Cell 4 in Electrical
Diagnosis.
Test Description
The number(s) below refer to the step number(s) on
the diagnostic table.
4. This step checks for a short to ground.
8. This step checks for an open.
14. This step checks for a short to voltage.