Pinpoint Tests RD: Nitrogen Oxides (NOX): Introduction

NOTE: Clearing the PCM DTCs erases any PCM recorded freeze frame data. Record any PCM freeze frame information before proceeding.

NOTE: Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.

This pinpoint test is intended to diagnose the following:

harness circuits: VPWR, PWRGND, GND, CAN2+, and CAN2-
nitrogen oxides bank 1, sensor 1 (NOx11) sensor (5J299)
nitrogen oxides bank 1, sensor 2 (NOx12) sensor (5J299)
NOx11 module (5K202)
NOx12 module (5K202)
NOx11 module and sensor assembly (5L248)
NOx12 module and sensor assembly (5E145)

Fig 1: Battery Junction Box-A (BJB-A) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
51	VPWR (Vehicle Power)

Fig 2: Battery Junction Box-B (BJB-B) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
44	VPWRA (Vehicle Power A)

Fig 3: Battery Junction Box-G (BJB-G) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
34	VPWR (Vehicle Power)

Fig 4: Nitrogen Oxides Bank 1, Sensor 1 (NOx11) Module Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
4	GND (Ground)
3	CAN2- (Controller Area Network 2)
2	CAN2+ (Controller Area Network 2)
1	VPWR (Vehicle Power)

Fig 5: Nitrogen Oxides Bank 1, Sensor 2 (NOx12) Module Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
4	GND (Ground)
3	CAN2- (Controller Area Network 2)
2	CAN2+ (Controller Area Network 2)
1	VPWR (Vehicle Power)

Fig 6: Nitrogen Oxides Bank 1, Sensor 3 (NOx13) Module Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
3	CAN2- (Controller Area Network 2)
2	CAN2+ (Controller Area Network 2)
1	VPWR (Vehicle Power)

Fig 7: Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Transit Connect	A	84 65	CAN2- CAN2+
All other vehicles	B	15 14	CAN2- CAN2+