KENWOOD KNA-SPM100 Speed Pulse Generator User Guide

June 5, 2024
KENWOOD

KENWOOD KNA-SPM100 Speed Pulse Generator User Guide

Connections

  • Red Wire – Connect to 12V Switched Power
  • Black Wire – Connect to Ground
  • Purple / Wire – Connect to Receiver’s Pink Speed Sense Wire
  • OBD-II Plug – Connect to Vehicle’s OBD-II Plug
  • Molex Plugs – Connect all to KNA-SPM100 Interface

Installation Instructions

  1. Power Receiver On.
  2. The KNA-SPM100 interface LED will blink RED 2 times, then OFF.
  3. The KNA-SPM100 has successfully programmed and is ready for use.

If the KNA-SPM100 interface did not blink RED 2 times, then OFF.

FAQ & Troubleshooting

LED Diagnostics

LED Blinks RED Indefinitely

  • KNA-SPM100 did not receive a response from the vehicle.
    • This means that the KNA-SPM100 is not compatible with that vehicle.
  • CAN wires are disconnected.
    • Verify CAN wire connections.

LED Blinks RED/GREEN During that Ignition Cycle

  • KNA-SPM100 has detected another OBD-II device, MRR, or another radio replacement interface module communicating on the bus
    • The KNA-SPM100 cannot be used in conjunction with another OBD-II device or MRR (please refer to the MRR or radio replacement interface instructions for vehicle speed pulse connection).
FAQ

How can I verify if a vehicle is compatible?

  • Verify that the vehicle’s year of production is 2008+ and has an OBD-II plug.
  • The KNA-SPM100 will not work If the vehicle doesn’t allow a scan tool to be plugged into it while the vehicle is turned on and/or while driving. Vehicle’s that may exhibit this symptom typically include high-end European models.
  • Ultimately, the only other way to verify if the KNA-SPM100 is compatible is to connect it to a vehicle and verify the LED sequence.
Receiver Messages

If you are still receiving a message like this when attempting to use Wireless Apple CarPlay while the vehicle is in motion:

  • The receiver is not receiving a proper and/or any vehicle speed information.
  • The GPS antenna is not connected or an incorrect GPS antenna is being used.

Disclaimer

The KNA-SPM100 provides a simplified method for obtaining a vehicle’s speed pulse information. It requests a vehicle’s speed using OBD-II and then generates a speed pulse to be provided to the receiver.

  • Compatible with most vehicles 2008 – Present
  • Pre-programmed to work once installed
  • Small footprint for easy installation
  • Simple 3-wire hookup and OBD-II connection cable

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