Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCADILLAC2005CTS VREPAIR AND DIAGNOSISQUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSCONNECTOR END VIEWSIGNITION COIL/MODULE 3 CONNECTOR END VIEW (5.7L)

2005 Cadillac CTS V

Ignition Coil/Module 3 Connector End View (5.7L)

2005 Cadillac CTS VSECTION Ignition Coil/Module 3 Connector End View (5.7L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162144 4-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	BK	1451	Ground
B	BN	2129	Low Reference
C	L-BU	2123	IC 3 Control
D	PK	5291	Ignition 1 Voltage

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.