Pin Voltage Charts

Following conditions must be met before testing:

• Engine at operating temperature.
• Engine in closed loop operation.
• Engine idling (ENG. "RUN" column).
• DLC "test" terminal not grounded.
• Scan tester not installed.
• Brake not applied.
• B+ indicates battery voltage.

Fig 1: PCM Connector Terminal ID (VIN L & VIN 1)

Courtesy of GENERAL MOTORS CORP.

Fig 2: PCM Conn. Terminal & Pin Vltge. Chart ID (VINS L & 1 - 1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 3: PCM Conn. Terminal & Pin Vltge. Chart ID (VINS L & 1 - 2 Of 2)

Courtesy of GENERAL MOTORS CORP.