Engine Control Module (ECM)

WARNING: This page is about a different variant/trim than selected.

Courtesy of JAGUAR CARS, INC.

The engine control module (ECM) is located in the E-Box on the right-hand (RH) side of the engine compartment at the front.

System engine control module (ECM) has the following inputs:

restraints control module (RCM)
Park/neutral switch
Ignition coil feedback x2
Fuel rail temperature
Fuel rail pressure
Supercharger inlet pressure
Mass air flow
Engine speed
Camshaft position x2
Driver demand
Brake pedal position switch
Speed control switches
Generator load
Oxygen sensors pre catalyst x2
Oxygen sensors post catalyst x2
Throttle position
Cooling fan speed
Ignition switch position
Knock sensors x2
manifold absolute pressure (MAP)
Intercooler temperature
Coolant temperature
Engine oil temperature
Air inlet temperature

The engine control module (ECM) outputs to the following:

Throttle actuator
Brake vacuum pump relay
Ignition coils (x8)
Oxygen sensor heaters (4)
Fuel injectors (8)
Purge valve
Engine cooling fan
Air conditioning condenser cooling Fan
Fuel pump relay
Starter relay
EMS Main relay
Generator control
Diagnostic Module Tank Leakage (DMTL) (NAS Only)
E-box fan
fuel pump driver module (FPDM)
Air conditioning condenser cooling fan (+ 50° Celsius markets)

ENGINE CONTROL MODULE (ECM) CONNECTOR C0634 PIN OUT TABLE

Pin No	Description	Input/Output
1	Not used	-
2	Not used	-
3	Generator monitor	Input
4	Not used	-
5	Not used	-
6	crankshaft position (CKP) sensor -	Input
7	camshaft position (CMP) sensor Aground (GND)	-
8	camshaft position (CMP) sensor Bground (GND)	-
9	Not used	-
10	throttle position (TP) sensor ground (GND)	-
11	manifold absolute pressure (MAP), oil temperature sensor and fuel rail temperature sensor ground	-
12	fuel rail pressure (FRP) sensor and viscous fan sensor ground	-
13	Not used	-
14	Not used	Input
15	engine coolant temperature (ECT) and intake air temperature (IAT) ground	-
16	Not used mass air flow (MAF) ground	-
17	Not used	-
18	mass air flow (MAF) sensor ground	-
19	Knock sensor 1A ground	-
20	Knock sensor 1B ground	-
21	Not used	-
22	Not used	-
23	Oil temperature sensor	Input
24	manifold absolute pressure and temperature (MAPT) sensor 5v ref	Output
25	Not used	-
26	UHEGO sensor bank B signal	Input
27	UHEGO sensor bank B ground (GND)	-
28	UHEGO sensor bank A signal	Input
29	UHEGO sensor bank A ground (GND)	-
30	crankshaft position (CKP) sensor +	Input
31	Not used	-
32	Not used	-
33	camshaft position (CMP) signal bank B	Input
34	camshaft position (CMP) signal bank A	Input
35	Not used	-
36	Not used	-
37	Not used	-
38	manifold absolute pressure (MAP) signal	Input
39	Intercooler air temperature sensor	Input
40	Not used	Input
41	Not used	Input
42	Knock sensor 1 A +	Input
43	Knock sensor 1 B +	Input
44	Not used	-
45	Not used	-
46	Fuel rail temperature sensor	Input
47	Fuel rail pressure sensor 5 V ref voltage	Output
48	manifold absolute pressure (MAP) sensor 5 V ref voltage	Output
49	Condenser fan (hot climates only)	Output
50	Not used	-
51	Not used	-
52	Not used	-
53	Not used	-
54	Ignition coil cylinder 4B	Output
55	Ignition coil cylinder 4A	Output
56	Ignition coil cylinder 3B	Output
57	Ignition coil cylinder 3A	Output
58	Ignition coil cylinder 2B	Output
59	Ignition coil cylinder 2A	Output
60	Ignition coil cylinder 1B	Output
61	Ignition coil cylinder 1A	Output
62	Ignition failure signal 1	Input
63	Viscous fan speed monitor	Input
64	Ignition failure signal 2	Input
65	throttle position (TP) sensor 1	Input
66	intake air temperature (IAT)	Input
67	throttle position (TP) sensor 2	Input
68	engine coolant temperature (ECT)	Input
69	Inlet manifold boost pressure	Input
70	mass air flow (MAF)	Input
71	Fuel rail pressure sensor signal	Input
72	Electric throttle 5V reference	Output
73	Not used	-
74	Throttle valve open direction -	Output
75	Throttle valve open direction +	Output
76	UHEGO Heater bank A	Output
77	UHEGO Heater bank B	Output
78	Injector cylinder 1A	Output
79	Injector cylinder 1B	Output
80	Injector cylinder 2A	Output
81	Injector cylinder 2B	Output
82	Injector cylinder 3A	Output
83	Injector cylinder 3B	Output
84	Injector cylinder 4A	Output
85	Injector cylinder 4B	Output
86	Not used	-
87	Not used	-
88	Not used	-
89	Not used	-
90	Not used	-
91	Not used	-
92	Purge valve	Output
93	Viscous fan request	Output
94	E box fan	Output
95	fuel pump driver module (FPDM) relay	Output
96	Generator control	Output

ENGINE CONTROL MODULE (ECM) CONNECTOR C0635 PIN OUT TABLE

Pin No	Description	Input/Output
1	Signal ground 1	-
2	Power ground 1	-
3	Power ground 2	-
4	engine control module (ECM) power	Input
5	Power ground 3	-
6	Electric throttle power	Input
7	accelerator pedal position (APP) sensor ground 1	-
8	accelerator pedal position (APP) sensor ground 2	-
9	Not used	-
10	Not used	-
11	Not used	-
12	Not used	-
13	Not used	-
14	Not used	-
15	Park/ Neutral signal	Input
16	EMS relay	Output
17	Crank request	Input
18	Not used	-
19	accelerator pedal position (APP) sensor 2 5V ref	Output
20	fuel pump driver module (FPDM) control	Output
21	fuel pump driver module (FPDM) monitor	Input
22	HEGO sensor A ground (GND)	-
23	DMTL heater	Output
24	accelerator pedal position (APP) sensor 1 signal	Output
25	HEGO sensor A	Input
26	HEGO sensor B	Input
27	Not used	-
28	restraints control module (RCM)	Input
29	Not used	-
30	Ignition switch	Input
31	Not used	-
32	accelerator pedal position (APP) sensor 1 5V reference	Output
33	DMTL pump	Output
34	HEGO sensor B ground (GND)	-
35	Not used	-
36	Not used	-
37	Not used	-
38	accelerator pedal position (APP) sensor 2 demand	Input
39	Not used	-
40	Not used	-
41	Not used	-
42	Not used	-
43	Brake pedal switch	Input
44	controller area network (CAN) out -	Input/output
45	controller area network (CAN) in -	Input/output
46	HEGO heater A	Output
47	HEGO heater B	Output
48	DMTL valve	Output
49	Air conditioning condenser fan (hot climate vehicles only)	Output
50	Vacuum pump relay	Output
51	Starter relay	Output
52	Not used	-
53	Not used	-
54	Battery voltage	Input
55	Not used	-
56	Not used	-
57	controller area network (CAN) out +	Input/output
58	controller area network (CAN) in +	Input/output