Relay, In-Rush Current Reduction: Description
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
In-rush Current Reduction Relay
| In-Rush Current Reduction Relay | |
|---|---|
| 1 | To Battery B+ Stud |
| 2 | ICR Control |
| 3 | Starter Control |
| 4 | Starter Drive |
| 5 | Starter Solenoid |
| 6 | Ring Gear |
| 7 | Case Ground |
| 8 | Shorting Bar |
| 9 | Resistor Bar |
| 10 | ICR Relay. Case Ground is at this location. |
The In-Rush Current Reduction Relay (ICR) is to reduce the electrical system's voltage drop, induced by the starter motor's large current draw, during the first few milliseconds of the cranking cycle. The ICR has the appearance of a solenoid assembly. On the V6 engine the relay is normally mounted towards the bottom end of the engine where the power steering pump used to be located. On the V8 engines the ICR is mounted towards the front cover of the engine towards the top. The relay is serviceable and is shipped along with a bracket that secures the ICR.