LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Theft Deterrent System) >> Diagnostic Tests >> DTC B2957: BCM Signal Input Less Than 0.4 Volt After Ignition CRANK >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Safari, 2002 Chevrolet Astro, 2001 GMC Safari, and 2001 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3. Tests for proper operation of the circuit in the high voltage range.
  2. 4. Tests for a short to ground in the Passlock™ sensor signal circuit.

Fig 1: DTC B2957 (1 Of 2)
G00377251Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC B2957 (2 Of 2)
G00377252Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals