Pinpoint Tests DG: Knock Sensor (KS): Introduction

This pinpoint test is intended to diagnose the following:

knock sensor bank 1, sensor 1 (KS11), knock sensor bank 1, sensor 2 (KS12), knock sensor bank 2, sensor 1 (KS21) and knock sensor bank 2, sensor 2 (KS22) (12A699)
harness circuits: KS11, KS11RTN, KS12, KS12RTN, KS21, KS21RTN, KS22, and KS22RTN
PCM (12A650)

Fig 1: Knock Sensor Bank 1, Sensor 1 (KS11) Connector

Courtesy of FORD MOTOR CO.

Fig 2: Knock Sensor Bank 1, Sensor 1 (KS11) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Aviator, Explorer 3.0L, F-150 2.7L	A	5 2	KS11RTN KS11
Continental, EcoSport 2.0L, Mustang 2.3L, Ranger 2.5L, Transit Connect 2.5L	B	1 2	KS11RTN KS11
E-Series, Edge 2.7L, F-650/F-750, F-Series Super Duty, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L Supercharged, Nautilus 2.7L	C	2 1	KS11RTN KS11
EcoSport 1.0L	D	1 2	KS11RTN KS11
Expedition, Explorer 3.3L, F-150 3.3L, Navigator, Transit	E	2 1	KS11RTN KS11
F-150 3.5L	F	8 7	KS11RTN KS11
F-150 5.0L, Mustang 5.0L, Mustang TiVCT 5.2L, Transit Connect 1.0L	G	2 1	KS11RTN KS11
Ford GT	C	1 2	KS11RTN KS11
KA 1.0L	H	2 1	KS11RTN KS11
All other vehicles	I	1 2	KS11RTN KS11

Fig 3: Knock Sensor Bank 1, Sensor 2 (KS12) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Continental, EcoSport 2.0L, Mustang 2.3L	A	1 2	KS12RTN KS12
Bronco Sport, Corsair 2.0L, Corsair 2.3L, Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.3L, Nautilus 2.0L, Ranger 2.3L, Transit Connect 2.0L	B	1 2	KS12RTN KS12
E-Series, F-650/F-750, F-Series Super Duty 7.3L, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L Supercharged	C	2 1	KS12RTN KS12
F-150 3.5L	D	4 3	KS12RTN KS12
F-150 5.0L, Mustang 5.0L	E	2 1	KS12RTN KS12

Fig 4: Knock Sensor Bank 2, Sensor 1 (KS21) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Aviator, Explorer 3.0L, F-150 2.7L	A	6 3	KS21RTN KS21
Edge 3.5L, Expedition, Explorer 3.3L, F-150 3.3L, Navigator, Transit	B	4 3	KS21RTN KS21
F-150 3.5L	C	6 5	KS21RTN KS21
F-150 5.0L, Mustang 5.0L, Mustang TiVCT 5.2L	D	2 1	KS21RTN KS21
Ford GT	E	1 2	K21RTN KS21
All other vehicles	E	2 1	KS21RTN KS21

Fig 5: Knock Sensor Bank 2, Sensor 2 (KS22) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
E-Series, F-650/F-750, F-Series Super Duty 7.3L, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L Supercharged	A	2 1	KS22RTN KS22
F-150 3.5L	B	2 1	KS22RTN KS22
F-150 5.0L, Mustang 5.0L	C	2 1	KS22RTN KS22

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to REFERENCE VALUES .

Vehicle	Connector	Pin	Circuit
Bronco Sport 1.5L, Escape/Kuga 1.5L, Transit Connect 1.0L	198 PIN	E12 E11	KS11RTN KS11
Bronco Sport 2.0L, Corsair 2.0L, Corsair 2.3L, Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.3L, Mustang 2.3L, Nautilus 2.0L, Ranger 2.3L	198 PIN	E43 E42 E12 E11	KS12RTN KS12 KS11RTN KS11
Continental, EcoSport 2.0L	198 PIN	E51 E50 E66 E65	KS12RTN KS12 KS11RTN KS11
Corsair 2.5L, EcoSport 1.5L Automatic Transmission, Escape/Kuga 2.5L, KA 1.5L Automatic Transmission, Transit Connect 2.5L	198 PIN	E57 E58	KS11RTN KS11
E-Series, F-650/F-750, F-Series Super Duty 7.3L, Motorhome/Stripped Chassis/Step Van, Mustang 5.0L, Mustang 5.2L Supercharged	306 PIN	E79 E58 E72 E51 E74 E53 E9 E30	KS22RTN KS22 KS21RTN KS21 KS12RTN KS12 KS11RTN KS11
EcoSport 1.0L Automatic Transmission	198 PIN	E66 E65	KS11RTN KS11
EcoSport 1.0L Manual Transmission	198 PIN	E60 E59	KS11RTN KS11
EcoSport 1.5L Manual Transmission, KA 1.2L, KA 1.5L Manual Transmission	112 PIN	E43 E31	KS11RTN KS11
Expedition High Output, Navigator High Output	198 PIN	E9 E8 E67 E68	KS21RTN KS21 KS11RTN KS11
F-150 2.7L, F-150 3.3L	306 PIN	E31 E10 E33 E12	KS21RTN KS21 KS11RTN KS11
F-150 3.5L, F-150 5.0L	306 PIN	E32 E11 E31 E10 E34 E13 E33 E12	KS22RTN KS22 KS21RTN KS21 KS12RTN KS12 KS11RTN KS11
Ford GT	198 PIN	E51 E50 E66 E65	KS21RTN KS21 KS11RTN KS11
KA 1.0L	128 PIN	E30 E18	KS11RTN KS11
Mustang TiVCT 5.2L	198 PIN	E67 E68 E52 E53	KS21RTN KS21 KS11RTN KS11
Ranger 2.5L	128 PIN	T25 T17	KS11RTN KS11
Transit Connect 2.0L	198 PIN	E12 E11 E43 E42	KS12RTN KS12 KS11RTN KS11
All other vehicles	306 PIN	E72 E51 E9 E30	KS21RTN KS21 KS11RTN KS11