Otc 24/34 Seatbelt Indicator Shorted To Ground Or Battery - GMC Chevrolet Camaro 1998 Service Manual

8-454 Body Control System
Body and Accessories
OTC 24/34 Seatbelt Indicator Shorted to. Ground or Battery
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Fasten'Seat
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ytr
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Belt Indicator
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control
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Module
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C4 C3
0.35 PPUWHT 237
A12
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1, _ _
83
- - - - - - , Instrument
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Fasten
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Cluster
SeatBelt
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Indicator
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Indicators/
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Gauges
1 BLK 650
S216 - - - - - - .,
3 BLK 650
Circuit Description
The body control module (BCM) provides a 12 volt
output to the FASTEN SEATBELT indicator lamp on
the instrument cluster while the driver's seatbelt is
unfastened.
Conditions for Setting the DTC
The FASTEN SEATBELT output has been detected
by the BCM to be. shorted to the ground, or shorted
to B+ for greater than 50 milliseconds.
Action Taken When the DTC Sets
The FASTEN SEATBELT indicator lamp does not
illuminate when the following conditions exist:
• The ignition is in the ON position.
• The driver side seatbelt is not fastened.
Conditions for Clearing the DTC
The fault is corrected and the DTC memory clearing
procedure is completed.
G200
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...
488660
Diagnostic Aids
If the only DTC that flashes is a HISTORY code
(DTC 34), the problem may be intermittent. Perform
the test shown while "wiggling" the wiring and
connectors. This can often cause the fault to appear.
Test for a poor connections at the BCM connector,
which could cause an open or an intermittent
fault. Refer to Diagnostic Trouble Code (OTC)
Displaying.
Test Description
The number(s) below refer to the step number(s) on
the diagnostic table.
1. This step tests the FASTEN SEATBELT indicator
for operation with the body control module (BCM)
disconnected, which would reveal a short
to B+ in CKT 237.
2. This step determines if there is a short to the
ground in the instrument cluster.
4. If the instrument cluster is OK, this step
determines if CKT 237 is shorted to the ground
or if the BCM is defective.
7. If there is a short to B+, this step determines if the
short is in the instrument cluster or in CKT 237.
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