LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1852 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B0689 >> Conditions for Clearing the MIL/DTC

Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC B0689

Step Action Yes No
Schematic Reference: Theft Deterrent System Schematics
Connector End View Reference: Vehicle Access Connector End Views
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Turn ON the ignition, with the engine OFF.
  2. With the scan tool, command the security indicator ON and OFF.
Does the security indicator turn ON and OFF with each command?
Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Disconnect the body control module (BCM) connector containing the security indicator control circuit.
  2. Using a fused jumper wire and the appropriate terminal adapter, ground the security indicator control circuit.
Does the security indicator illuminate?
Go to Step 6  Go to Step 4 
4 Test for an open or short to ground in the security indicator control circuit. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
Go to Step 9  Go to Step 5 
5 Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 9  Go to Step 7 
6 Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
7 Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 9  -
8 Replace the BCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 1