2017 Hyundai Azera BaseFACTORY OEM SERVICE PROCEDURE

IDB Terminal and Input

Fig 1: Injector Drive Box Connector End View
G12088460Courtesy of HYUNDAI MOTOR AMERICA

IDB terminal function 

CONNECTOR TERMINALS REFERENCE (CLG02)

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), Multipurpose check connector
27 CCP-CAN [High] Other control module, Data Link Connector (DLC), Multipurpose 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 TERMINALS REFERENCE (CLG02)

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. 1.0Vz
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
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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