Diagnostic Aids

WARNING: This page is about a different car, the 2004 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.

Typical causes of C0054.

Weak or Discharged battery.
Loose or poor battery terminals.
Battery disconnected.
Loose or poor ground cables.
Poor EBCM terminal contact.
Excessive parasitic draws.
Charging system malfunction.

Fig 1: DTC C0054: Abnormal Shutdown Detected Diagnostic Chart (1 Of 2)

Courtesy of SUZUKI OF AMERICA CORP.

Fig 2: DTC C0054: Abnormal Shutdown Detected Diagnostic Chart (2 Of 2)

Courtesy of SUZUKI OF AMERICA CORP.