Hyundai Genesis: Engine Control System / Injector Drive Box (IDB) Schematic Diagrams

IDB Terminal And Input / Output signal

IDB terminal function

Pin No.	Description	Connected to
1	-	?
2	-	?
3	-	?
4	-	?
5	-	?
6	-	?
7	-	?
8	-	?
9	-	?
10	-	?
11	-	?
12	-	?
13	-	?
14	-	?
15	-	?
16	Injector (Cylinder #3) [Low] control output	Injector (Cylinder #3)
17	Injector (Cylinder #6) [Low] control output	Injector (Cylinder #6)
18	Injector (Cylinder #6) [High] control output	Injector (Cylinder #6)
19	Injector (Cylinder #2) [Low] control output	Injector (Cylinder #2)
20	Injector (Cylinder #5) [Low] control output	Injector (Cylinder #5)
21	-	?
22	Injector (Cylinder #2) signal input	Engine Control Module (ECM)
23	Injector (Cylinder #5) signal input	Engine Control Module (ECM)
24	-	?
25	Fuel Pressure Control Valve (FPRV) logic input	Engine Control Module (ECM)
26	CCP-CAN [Low]	Other control module, Data Link Connector (DLC), Multi-purpose check connector
27	CCP-CAN [High]	Other control module, Data Link Connector (DLC), Multi-purpose check connector
28	Battery power (B+)	Ignition switch
29	Battery power (B+)	Main relay
30	Battery power (B+)	Main relay
31	Injector (Cylinder #4) [High] control output	Injector (Cylinder #4)
32	Injector (Cylinder #1) [High] control output	Injector (Cylinder #1)
33	Injector (Cylinder #3) [High] control output	Injector (Cylinder #3)
34	Injector (Cylinder #2) [High] control output	Injector (Cylinder #2)
35	Injector (Cylinder #5) [High] control output	Injector (Cylinder #5)
36	-	?
37	-	?
38	Injector (Cylinder #3) signal input	Engine Control Module (ECM)
39	-	?
40	Injector (Cylinder #6) signal input	Engine Control Module (ECM)
41	Injector (Cylinder #4) signal input	Engine Control Module (ECM)
42	Battery power (B+)	Ignition switch
43	Battery power (B+)	Main relay
44	Battery power (B+)	Main relay
45	Fuel Pressure Control Valve (FPRV) [High] control output	Fuel Pressure Control Valve (FPRV)
46	Injector (Cylinder #4) [Low] control output	Injector (Cylinder #4)
47	Injector (Cylinder #1) [Low] control output	Injector (Cylinder #1)
48	ECM ground	Chassis ground
49	ECM ground	Chassis ground
50	ECM ground	Chassis ground
51	-	?
52	-	?
53	-	?
54	-	?
55	Injector (Cylinder #1) signal input	Engine Control Module (ECM)
56	-	?
57	-	?
58	-	?
59	Battery power (B+)	Main relay
60	Fuel Pressure Control Valve (FPRV) [Low] control output	Fuel Pressure Control Valve (FPRV)

IDB Terminal input/output signal

Pin No.	Description	Condition	Type	Level
1	-	?	?	?
2	-	?	?	?
3	-	?	?	?
4	-	?	?	?
5	-	?	?	?
6	-	?	?	?
7	-	?	?	?
8	-	?	?	?
9	-	?	?	?
10	-	?	?	?
11	-	?	?	?
12	-	?	?	?
13	-	?	?	?
14	-	?	?	?
15	-	?	?	?
16	Injector (Cylinder #3) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
17	Injector (Cylinder #6) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
18	Injector (Cylinder #6) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
19	Injector (Cylinder #2) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
20	Injector (Cylinder #5) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
21	-	?	?	?
22	Injector (Cylinder #2) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
23	Injector (Cylinder #5) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
24	-	?	?	?
25	Fuel Pressure Control Valve (FPRV) logic input	?	?	?
		?	?	?
26	CCP-CAN [Low]	Recessive	Pulse	2.0 ~ 3.0V
		Dominant		2.75 ~ 4.5V
27	CCP-CAN [High]	Recessive	Pulse	2.0 ~ 3.0V
		Dominant		2.75 ~ 4.5V
28	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
29	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
30	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
31	Injector (Cylinder #4) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
32	Injector (Cylinder #1) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
33	Injector (Cylinder #3) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
34	Injector (Cylinder #2) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
35	Injector (Cylinder #5) [High] control output	Idle	Pulse	High: Battery voltage ~ 80V
		Relay ON		Low: Battery voltage
36	-	?	?	?
37	-	?	?	?
38	Injector (Cylinder #3) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
39	-	?	?	?
40	Injector (Cylinder #6) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
41	Injector (Cylinder #4) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
42	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
43	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
44	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
45	Fuel Pressure Control Valve (FPRV) [High] control output	Idle	DC voltage	Battery voltage
				Max. 1.0V
46	Injector (Cylinder #4) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
47	Injector (Cylinder #1) [Low] control output	Idle	Pulse	High: Battery voltage
		Relay ON		Low: Max. 1.0V
48	ECM ground	Idle	DC voltage	Max. 50mV
49	ECM ground	Idle	DC voltage	Max. 50mV
50	ECM ground	Idle	DC voltage	Max. 50mV
51	-	?	?	?
52	-	?	?	?
53	-	?	?	?
54	-	?	?	?
55	Injector (Cylinder #1) signal input	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0V
56	-	?	?	?
57	-	?	?	?
58	-	?	?	?
59	Battery power (B+)	IG OFF	DC voltage	Max. 0.5V
		IG ON		Battery voltage
60	Fuel Pressure Control Valve (FPRV) [Low] control output	Idle	DC voltage	Battery voltage
				Max. 1.0V

Circuit Diagram

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