Ignition System Wiring Diagram (1997 3.1L V6 Buick Century)

This simplified ignition system wiring diagram applies to the following vehicles:

• 1997 3.1L V6 Buick Century.

This typical circuit diagram includes the following circuits:

• Ignition coil packs.
• 7X Crankshaft position (CKP) sensor (low resolution sensor).
• 24X Crankshaft position (CKP) sensor (high resolution sensor).
• Camshaft position (CMP) sensor.
• Ignition control module (ICM) assembly.

You can find the CMP sensor and the 24X crankshaft position sensor tests here:

• How To Test The CMP Sensor (3.1L V6 Buick, Oldsmobile).
• How To Test The 24X Crankshaft Position Sensor (1995-1997 3.1L V6 Oldsmobile Cutlass Supreme).

You can find the ignition coil and ignition module tests here:

• How To Test The Ignition Coil Packs (GM 3.1L, 3.4L) (at: easyautodiagnostics.com).
• Testing The Ignition Module and Crank Sensor (GM 3.1L, 3.4L) (at: easyautodiagnostics.com).

IGNITION SYSTEM RELATED WIRING DIAGRAMS:

• Ignition System Wiring Diagram (1994-1995 3.1L V6 Buick Century).
• Ignition System Wiring Diagram (1996 3.1L V6 Buick Century).
• Ignition System Wiring Diagram (1996 3.1L V6 Oldsmobile Cutlass Supreme).
• Ignition System Wiring Diagram (1997 3.1L V6 Oldsmobile Cutlass Supreme).