Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Kia Cadenza BaseFACTORY OEM SERVICE PROCEDURE
IDB terminal function
IDB CONNECTOR PIN DESCRIPTION (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) |
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.