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Home >> Suzuki >> 2011 >> Grand Vitara Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 (Immobilizer Control System) >> Diagnostic Information and Procedure >> DTC B2193, P1612: Chain of ECM-IMMU >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Suzuki Equator. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS PROCEDURE

Step Action YES NO
1  REPLACE BCM 
  1. Replace BCM. Refer to [BCM (BODY CONTROL MODULE): REMOVAL AND INSTALLATION ]
  2. Perform initialization with SDT.

For initialization, refer to SDT Operation Manual.
Does the engine start? 		 BCM was malfunctioning. ECM is malfunctioning. 
  • Replace ECM.
  • Perform ECM re-communicating function.
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