GMC Chevrolet Camaro 1998 Service Manual page 823

Body and Accessories Theft Deterrent 8-581
Ignition Lock Cylinder Test
Step Action
Value(s)
Yes No
Important:
• Inspect all of the keys for matching codes.
• After you repair the lock cylinder harness, the SECURITY indicator will remain ON for approximately 1 minute.
1. Insert the ignition key into the J 35628-A.
1
2. Turn the J 35628-A ON.
1-15
3. Read the key code on the display of the J 35628-A.
Is the key code a value of 1-15? Go to Step 2 Go to Step 5
1. Write down the key code that the J 35628-A
displayed.
2. Turn the J 35628-A OFF.
3. Connect the J 35628-A to the 2-way ignition switch
lock cylinder harness connector at the base of the
2
steering column.
-
4. Insert the ignition key into the ignition switch lock
cylinder.
5. Turn the J 35628-A ON.
6. Observe the display on the J 35628-A.
Is the key code the same as the code recorded in step 1?
Go to Step 3
Go to Step 6
Using a test lamp, frontprobe the 2-way connector at
3
the base of the steering column, between terminal B
-
(BCM side) and B+.
Does the test lamp light?
Go to Step 4 Go to Step 7
1. Test for an open in circuit 1073.
2. Test for a short to B+ in circuit 1073.
3. Test for a short to ground in circuit 1073.
4
4. If circuit 1073 is OK, replace the BCM. Refer to Body
- -
Control Module Replacement in Body Control
Systems.
Is the repair complete? System OK
1. Clean the key.
2. Retest the key. If the key code is invalid, replace the
5
key. Refer to Programming Additional Keys or
-
-
Programming Replacement Keys, lgn Cy/, or PCM.
Did you replace the key?
System OK
Inspect for a poor connection. If the connection is OK,
6
replace the ignition switch lock cylinder. Refer to Ignition
-
-
Lock Cylinder Replacement - On Vehicle.
Is the repair complete? System OK
1. Disconnect the BCM.
7
2. Connect a test lamp between the BCM connector C3
-
terminal C1 and B+.
Does the test lamp light? Go to Step 8 Go to Step 9
1. Test for poor connections at BCM connector C3
terminal C2 and terminal 07.
2. Test for an open in circuit 1074.
8
3. If all connections are OK, replace the BCM. Refer to
-
-
Body Control Module Replacement in Body Control
Systems.
Is the repair complete? System OK
9
Repair the open in circuit in 650.
-
-
Is the repair complete?
System OK