Low Traction Indicator Always On - GMC chervolet camaro 1999 Service Manual

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Brakes Antilock Brake System 5-243
Low Traction Indicator Always On
Data Link
!Hot
In RUN, Bulb TntAnd START
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Connector
r - - - - - - - - - - - - ,
IP
(DLC)
I G3
:e~s
Not
used
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Fuse
21
I H3 10A I
Block
0.35 p~ 1132
~ _ _ _ _ _ _ _ _ _ _ _
H4_
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r - - - - - - -
1
_ ------------,
Sta 0.5 PNK 39
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Data Link
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r
Connector (OLC) •
Connector
~ee11so _____
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S206 - - - . _ _ _ _
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L
0.35 PNK 39
0.35 LT BLU 1122
0.35 GAY 1036
A3 C200D
86
....... Instrument
"1'6
Cluster
C200A
0.35 LT BLU 1122
P100
25
r - - ~
- - , Electronic
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Data
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Brake/Traction
r
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---------------------------,
Class 2
Data
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-----------------------..,
815
0.35 BU< 451
5215 - - - - - - .,
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0.8
BLK
451
1
E C220
P110
0.8 BLK 451
...
I I
Control Module
5110 - - - - - -
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l(EBTCM)
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L------J~
3 BLK 451
..,,. G110
Circuit Description
The Instrument Panel Cluster (IPC) turns the LOW
TRAC Indicator on during the IPC bulb check for
approximately 3 seconds when the ignition switch is
turned to the ON position. If the EBTCM sets a
Diagnostic Trouble Code (OTC) the EBTCM sends the
IPC the command to turn the LOW TRAC Indicator on.
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
421906
- 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 for further diagnosis.
2. Checks if the scan tool can turn on and off all the
indicator lamps in the instrument cluster.
4. Checks if the circuits going to the instrument
cluster or the cluster is at fault.