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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1732 (Cellular Communication System) >> Diagnostic Information and Procedures >> DTC B2483 or B2484: VCIM Does Not Detect A Navigation Signal >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC B2483 or B2484

Step Action Values Yes No
Schematic Reference: OnStar Schematics 
Connector End View Reference: Cellular Communication Connector End Views 
1 Did you perform the Cellular Communication Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Cellular Communication 
2
NOTE: Using a DMM to measure the resistance of the navigation antenna coax from the center conductor to the outer shield while the antenna is still connected will damage the navigation antenna.
  1. Disconnect the navigation antenna coax connector from the navigation antenna.
  2. Disconnect the navigation antenna from the vehicle communication interface module (VCIM).
  3. Measure the resistance from the center conductor of the coax to the metal outer shield.
Does the meter read out of limits?
- Go to Step 3  Go to Step 4 
3 Measure the resistance of the navigation antenna coax center conductor from end to end.
Does the resistance measure greater than the specified value?
1.0 Ω Go to Step 4  Go to Step 5 
4 Replace the navigation antenna coax.
Did you complete the replacement?
- Go to Step 7  -
5 Inspect for poor connections at the navigation antenna and the harness connector of the VCIM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 7  Go to Step 6 
6 Replace the Navigation antenna. Refer to Navigation Antenna Replacement .
Is the repair complete?
- Go to Step 7  -
7
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
- Go to Step 8  System OK
8
IMPORTANT: Perform the OnStar® setup procedure.
Replace the VICM. Refer to Communication Interface Module Replacement .
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
- Go to Step 2  -