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

Engine Control Module (ECM) Repair procedures

Removal     For the vehicle equipped with the immobilizer, the procedures shown below must be performed after replacing the ECM. [In the case of installing used ECM] 1) Perfo ...

Injector Drive Box (IDB) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the ECM & TCM & IDB bracket. (Refer to Engine Control System - "ECM") 3. Disconne ...

Other information:

Hyundai Genesis (DH) 2013-2016 Service Manual: Photo Sensor Repair procedures

Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light. 1. Battery2. LIN (Local Inter ...

Hyundai Genesis (DH) 2013-2016 Service Manual: Injector Description and Operation

Description Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time. The ECM controls each injector by grounding the control circ ...