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Body and Accessories
Theft Deterrent System Connector
End Views
Theft Deterrent Shock Sensor
130637
Connector Part
• 1206-4760
Information
• 4 Way F Metri-Pack
150 Series (BLK)
Circuit
Pin
Wire Color
No.
Function
A
ORN
640
Fused battery feed
B
LTGRN
1828
Shock sensor shock
signal
c
BLK
650
Ground
D
LT BLU
263
Shock sensor tamper
signal
Diagnostic Information and
Procedures
lntermittents and Poor Connections
Tools
Required
J 39200 Digital Multimeter
Important:
In order to prevent misdiagnosis, verify
that no DTCs are stored in the PCM by performing the
On-Board Diagnostic System Check. Look for DTCs
that indicate a problem in the PASS-Key® II fuel enable
circuit. Refer to A Powertrain On Board Diagnostic
(OBD) System Check or A Powertrain On Board
Diagnostic (080) System Check in Engine Controls.
The following are the most likely causes of intermittent
starting or cranking complaints due to the
PASS-Key® II:
• Incorrect resistance measurement of the ignition
key resistance
• Intermittent relay
Theft Deterrent 8-577
In order to test for incorrect resistance measurements,
use the following steps:
• If only one key functions properly, clean or
replace the faulty key. If you have tried a key that
did not function properly, you must wait 3 minutes
for the Tamper Mode timer to expire. After
3 minutes you may try a new key.
• If none of the keys function properly, one of the
following conditions is present:
- The lock cylinder is dirty or defective.
- The key resistance circuit wiring,
connections, or contacts are faulty.
Use the following steps in order to measure the key
resistance circuit with an ohmmeter:
1. Use the J 39200 in order to measure resistance
across the key contacts while the key is removed
from the vehicle.
2. Disconnect the Body Control Module (BCM).
3. Insert the key into the ignition.
4.
Set the J
39200
to MIN MAX.
5.
Measure the resistance across terminals C2
and D7 of the BCM harness connector C3.
6.
Rotate the steering wheel from side to side.
7. Listen for an audible tone from the J
39200.
A
tone indicates that the resistance is fluctuating.
• If the resistance is fluctuating, inspect the
wiring and the wiring connections to the
lock cylinder for an intermittent condition. An
example of an intermittent condition is a
poor connection or a broken wire inside the
insulation.
• If the resistance is not within 5 ohms of the
resistance measured on the key, inspect
for a dirty or defective lock cylinder.
8.
In order to test for a resistance change, rotate the
key to all possible positions. Monitor the results. A
resistance change of over
5
ohms indicates a
problem with the lock cylinder or the key contacts.
Use the following steps in .order to test for
intermittent relay:
1. If the SECURITY indicator illuminates for the
5
second bulb check then goes out, inspect
the relay. If the connections to the relay are OK,
install a new relay.
2. If the SECURITY indicator remains illuminated
longer than the 5 second bulb check when the
vehicle will not crank, the relay is not the cause of
the condition.
3. If you need to turn the key several times before
the engine cranks, the relay is not functioning
properly. Inspect the connections to the relay. If
the connections to the relay are OK, install a
new relay.