## Multiplex Control System

#### Multiplex Control Unit Input Test

22-277

1. Remove the dashboard lower cover (see page 20-78).
2. Disconnect the under-dash fuse/relay box connectors C, E, F, J, K, O, P, Q, X and Y.
   NOTE: All connectors are wire side of female terminals.

   CONNECTOR C (14P) | CONNECTOR E (13P) | CONNECTOR F (12P) | CONNECTOR J (8P)

CONNECTOR K (17P) | CONNECTOR O (12P) | CONNECTOR P (18P)

CONNECTOR Q (8P) | CONNECTOR X (8P) | CONNECTOR Y (13P)

3. Inspect the connector and socket terminals to be sure they are all making good contact.
   - If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
   - If the terminals look OK, go to step 4.