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.
ICM (Integrated Circuit Module) Relay Box
2008 Hyundai Entourage V6-3.8LSECTION ICM (Integrated Circuit Module) Relay Box
ICM (INTEGRATED CIRCUIT MODULE) RELAY BOX
INSPECTION
FRONT BLOWER
Check for continuity between the terminals.
1. There should be continuity between the No. 1 in the ICM-A and No. 10 in the ICM-B terminals when power and ground are connected to the No. 7 in the ICM-A and No. 13 terminals in the ICM-B terminals.
2. There should be no continuity between the No. 1 in the ICM-A and No. 10 terminals in the ICM-B terminals when power is disconnected.
REAR BLOWER
Check for continuity between the terminals.
1. There should be continuity between the No. 4 in the ICM-A and No. 12 in the ICM-B terminals when power and ground are connected to the No. 2 in the ICM-A and No. 14 terminals in the ICM-B terminals.
2. There should be no continuity between the No. 4 in the ICM-A and No. 12 in the ICM-B terminals when power is disconnected.
SEAT HEATER RELAYS
Check for continuity between the terminals.
1. There should be continuity between the No. 9 and No. 6 terminals when power and ground are connected to the No. 7 and No. 8 terminals in the ICM-B.
2. There should be no continuity between the No. 9 and No. 6 terminals when power is disconnected.
KEY INTERLOCK
Check for continuity between the terminals.
1. There should be continuity between the No. 2 and No. 3 terminals when power and ground are connected to the No. 4 and No. 5 terminals in the ICM-B.
2. There should be no continuity between the No. 2 and No. 3 terminals when power is disconnected.
INSPECTION
FRONT BLOWER
Check for continuity between the terminals.
1. There should be continuity between the No. 1 in the ICM-A and No. 10 in the ICM-B terminals when power and ground are connected to the No. 7 in the ICM-A and No. 13 terminals in the ICM-B terminals.
2. There should be no continuity between the No. 1 in the ICM-A and No. 10 terminals in the ICM-B terminals when power is disconnected.
REAR BLOWER
Check for continuity between the terminals.
1. There should be continuity between the No. 4 in the ICM-A and No. 12 in the ICM-B terminals when power and ground are connected to the No. 2 in the ICM-A and No. 14 terminals in the ICM-B terminals.
2. There should be no continuity between the No. 4 in the ICM-A and No. 12 in the ICM-B terminals when power is disconnected.
SEAT HEATER RELAYS
Check for continuity between the terminals.
1. There should be continuity between the No. 9 and No. 6 terminals when power and ground are connected to the No. 7 and No. 8 terminals in the ICM-B.
2. There should be no continuity between the No. 9 and No. 6 terminals when power is disconnected.
KEY INTERLOCK
Check for continuity between the terminals.
1. There should be continuity between the No. 2 and No. 3 terminals when power and ground are connected to the No. 4 and No. 5 terminals in the ICM-B.
2. There should be no continuity between the No. 2 and No. 3 terminals when power is disconnected.
RENDER: 1.0x
NO RELATED
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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.