Passenger's Multiplex Control Unit
- Remove right side kick panel. Turn ignition switch to OFF position. Disconnect passenger's multiplex control unit Gray 26-pin and 22-pin connectors. See Fig 1
. Ensure terminals of both connectors are okay and making proper contact. Repair connector terminals as necessary and retest system. If connector terminals are okay, go to next step.
- Using a voltmeter, probe between Gray 26-pin connector terminal A1 (White/Yellow wire) and ground. See Fig 1
. See PASSENGER'S MULTIPLEX CONTROL UNIT CONNECTOR TERMINAL
ID table. If battery voltage exists, go to next step. If battery voltage does not exist, check fuse No. 56 (7.5-amp), located in fuse/relay box, in engine compartment. If fuse is okay, check for an open in White/Yellow wire.
- Ensure ignition switch is in OFF position. Using an ohmmeter, probe between passenger's multiplex control unit Gray 26-pin connector terminals A2 (Black wire) and A3 (Black wire) and ground. If continuity exists, go to next step. If continuity does not exist, check for open in Black wire and/or a bad ground connection.
- Ensure ignition switch is in OFF position. Using a voltmeter, probe between passenger's multiplex control unit Gray 26-pin connector terminal A12 (White wire) and ground. If battery voltage exists, go to next step. If battery voltage does not exist, check fuse No. 44 (20-amp), located in fuse/relay box, in engine compartment. If fuse is okay, check for an open in White wire.
- Turn ignition switch to ON position. Using a voltmeter, probe between passenger's multiplex control unit Gray 26-pin connector terminal A14 (Yellow wire) and ground. If battery voltage exists, go to next step. If battery voltage does not exist, check fuse No. 13 (7.5-amp), located in fuse/relay box under instrument panel. If fuse is okay, check for an open in Yellow wire.
- Turn ignition switch to OFF position. Using an ohmmeter, probe between passenger's multiplex control unit Gray 26-pin connector terminal A16 (Black wire) and ground. If continuity does not exist, check for an open in Black wire and/or a bad ground connection. If wire and ground connection are okay, replace passenger's multiplex control unit.
Courtesy of AMERICA HONDA MOTOR CO., INC. PASSENGER'S MULTIPLEX CONTROL UNIT CONNECTOR TERMINAL ID
| Terminal (Wire Color) |
Circuit |
| Gray 26-Pin Connector |
| A1 (WHT/YEL) |
Battery Input |
| A2 (BLK) |
Ground |
| A3 (BLK) |
Ground |
| A4 (BLK/RED) |
Front Passenger Power Window Control |
| A5 (YEL) |
Trunk Opener Main Switch Input |
| A6 (YEL/BLU) |
Rear Defogger ON Input |
| A7 (GRN/ORG) |
Hood Switch Input |
| A8 (BLU) |
Audio Unit Input |
| A9 (RED/YEL) |
A-D Line |
| A10 (PNK/BLU) |
Wake-Up |
| A12 (WHT) |
Battery Input |
| A13 (WHT/RED) |
Driver's/ Left Rear Door Lock Control |
| A14 (YEL) |
Ignition Input |
| A15 (RED) |
Dim Control |
| A16 (BLK) |
Ground |
| A17 (BLU/BLK) |
Front Passenger Power Window Control |
| A18 (YEL/RED) |
Engine Oil Pressure Input |
| A19 (YEL/GRN) |
Rear Defogger ON Output |
| A20 (WHT/BLU) |
Engine Running Input |
| A21 (BLU/RED) |
Front Passenger Knob Switch Input |
| A22 (BRN/WHT) |
D-A Line |
| A23 (GRN/RED) |
Front Passenger Door Switch Input |
| A25 (LT GRN/BLK) |
Driver's Door Lock Control |
| A26 (YEL/RED) |
Left Rear Door Lock Control |
| Gray 22-Pin Connector |
| B1 (WHT/RED) |
Front Passenger/ Right Rear Door Lock Control |
| B3 (PNK/BLU) |
Trunk |
| B4 (RED/WHT) |
Lock |
| B5 (BLU/GRN) |
Trunk Latch Switch Input |
| B6 (YEL/GRN) |
Right Rear Power Window Control |
| B7 (RED/BLU) |
Right Rear Door Knob Switch Input |
| B8 (GRN/WHT) |
Front Passenger Door Lock Switch Input UNLOCK |
| B9 (GRN/RED) |
Front Passenger Door Lock Cylinder Switch Input UNLOCK |
| B10 (BLU/RED) |
Interior Light Control |
| B11 (WHT/BLK) |
Trunk Opener Solenoid Control |
| B12 (YEL/RED) |
Front Passenger/Right Rear Door Lock Control |
| B14 (YEL/BLK) |
PCM "C" |
| B15 (GRN) |
Unlock |
| B17 (YEL) |
Right Rear Power Window Control |
| B18 (GRN/ORG) |
Right Rear Door Switch Input |
| B19 (GRN/RED) |
Front Passenger Door Lock Switch Input LOCK |
| B20 (GRN/WHT) |
Front Passenger Door Lock Cylinder Switch Input LOCK |
| B21 (LT GRN/BLK) |
Courtesy Light Control |
| B22 (PNK/BLK) |
Multiplex Check Connector Input |