Hyundai Azera: Injector Drive Box (IDB) Schematic Diagrams
| IDB terminal and Inoutput |

| 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 | 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 |
| 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 |


Engine Control Module (ECM) Repair procedures
Injector Drive Box (IDB) Repair proceduresIMS (Integrated Memory System) module Repair procedures
Removal
1.
Remove the negative (-) battery terminal.
2.
Remove the driver seat in the car.
(Refer to Body - "Front Seat Assembly")
3.
Remove the IMS module (A) after loosening 3 screws in ...
ETC (Electronic Throttle Control) System Repair procedures
Inspection
Throttle Position Sensor (TPS)
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T.
Throttle ...
Reporting safety defects
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in ad ...