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Home >> Volvo >> 2003 >> C70 2.3 53, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Immobilizer Module (IMM) And Guard Lock And Alarm (GLA) - Diagnostic Trouble Codes (DTC) (Coupe)) >> GLA-455: IMMO-VGLA Code. Signal Too Low. Permanent Fault (1999-2002) >> Signal too low. Permanent fault >> Checking fault cause

Checking fault cause

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Check the fault cause corresponding symptoms. One of the following alternatives can occur:

  1. A used immobilizer system has been installed. Refer to Replacing the control module 
  2. A used VGLA control module has been installed. Refer to Replacing the control module 
  3. An non-approved or defective key. Refer to Checking the key 
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