Kia Cadenza YG: Engine Control System / Injector Drive Box (IDB) Schematic Diagrams

Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Engine Control System / Injector Drive Box (IDB) Schematic Diagrams

IDB terminal and Inoutput

IDB terminal function
Connector [C602]
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
ECM ground
Chassis ground
53
ECM ground
Chassis ground
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
Connector [C602]
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
ECM ground
Idle
DC voltage
Max. 50mV
53
ECM ground
Idle
DC voltage
Max. 50mV
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

    Removal     When replacing the ECM, the vehicle equipped with the immobilizer must be performed procedure as below. [In the case of installing used ECM] 1) Perform "ECM Neutral mode" procedure with GDS.

    Removal 1. Turn the ignition switch off and disconnect the battery negative (-) cable. 2. Disconnect the injector drive box (IDB) connector (A).

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Surround View Monitoring Switch Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the floor console upper cover. (Refer to Body - "Floor Console Assembly") 3. Disconnect the console upper cover connector (A). 4. Remove the cup holder assembly (A) after loosening the mounting screws.

    Kia Cadenza YG 2016-2021 Service Manual: General Safety Information and Caution

    Instructions When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2. It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands.

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