Pin Voltage Charts

CAUTION: The following conditions must be met before testing:

Fig 1: 2.5L (VIN E) ECM Terminal Id & Pin Voltages

Courtesy of GENERAL MOTORS CORP.

Fig 2: 2.8L (VIN R) ECM Terminal Id & Pin Voltages

Courtesy of GENERAL MOTORS CORP.

Fig 3: 3.1L (VIN D) ECM Terminal Id & Pin Voltages

Courtesy of GENERAL MOTORS CORP.

Fig 4: 4.3L & V8 ECM Terminal Id & Pin Voltages

Courtesy of GENERAL MOTORS CORP.

Fig 5: 6.2L Diesel ECM Terminal Id & Pin Voltages

Courtesy of GENERAL MOTORS CORP.