Installation of Signal Controller and Harness "A"
1. Disconnect negative battery cable.
2. The signal controller is located inside the vehicle, behind the left side rear seat armrest trim panel mounted next to the automatic seat belt rail motor. Remove trim from this area as described in the applicable service manual to gain access. See Figure 1.
3. Remove the existing signal controller and replace with the modified unit. Note that harness "A" has several connectors. One of these is a 5 pin diagnostic connector that can be used for accessing diagnostic information. This connector doesn't get plugged into anything. The multi-pin blade type connector mates with OEM harness connector R49. The remaining pin type connectors should already be plugged into the modified signal controller. See Figure 2.
Modified Signal Controller
4. Route the wiring below the signal controller. Avoid pinching or contact with sharp objects, using vinyl tape to secure as necessary.
Note: Leave trim off for access to diagnosis connector. D-check must be performed after the installation.