Pinpoint Test DG: Knock Sensor (KS): Introduction: Notes

This pinpoint test is intended to diagnose the following:

KS1 and KS2 (12A699)
harness circuits: KS1+, KS1-, KS2+, and KS2-
PCM (12A650)

Fig 1: Identifying Knock Sensor 1 (KS1) Connector
Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
E-Series, Escape/Kuga 1.6L, Transit Connect 1.6L	A	2 1	KS1+ KS1-
Edge 2.0L, Escape/Kuga 2.0L, Escape/Kuga 2.5L, Explorer 2.0L, Focus 2.0L, Fusion 2.0L, Fusion 2.5L, MKC, MKT 2.0L, MKZ 2.0L, Mustang 2.3L, Taurus 2.0L, Transit Connect 2.5L	B	2 1	KS1+ KS1-
Edge 2.7L, F-150 2.7L, F-150 5.0L, F-650/F-750, F-Series Super Duty, Motorhome/Stripped Chassis/Step Van, Mustang 5.0L	C	1 2	KS1+ KS1-
Fiesta 1.0L, Focus 1.0L	D	1 2	KS1+ KS1-
Fiesta GTDI 1.6L, Fusion 1.5L, Fusion 1.6L	A	1 2	KS1+ KS1-
All other vehicles	E	1 2	KS1+ KS1-

Fig 2: Identifying Knock Sensor 2 (KS2) Connector

G09956931

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Escape/Kuga 1.6L, Transit Connect	A	2 1	KS2+ KS2-
Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.0L, Focus, Fusion 2.0L, MKC, MKT 2.0L, MKZ 2.0L, Mustang 2.3L, Taurus 2.0L	B	2 1	KS2+ KS2-
Edge 2.7L, F-150 2.7L, F-150 5.0L, F-650/F-750, F-Series Super Duty 6.2L, Motorhome/Stripped Chassis/Step Van, Mustang 5.0L	C	1 2	KS2+ KS2-
F-Series Super Duty 6.8L	D	1 2	KS2+ KS2-
Fiesta, Fusion 1.5L, Fusion 1.6L	A	1 2	KS2+ KS2-
All other vehicles	D	3 4	KS2+ KS2-