MCM Inputs and Outputs at Connector A (31P)
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
MCM INPUTS AND OUTPUTS AT CONNECTOR A TERMINAL REFERENCE
| Terminal number | Wire color | Terminal name | Description | Signal | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | PNK/BLK | IGA (IGNITION FOR ASSIST SYSTEM) | Power source for MCM control circuit | With ignition switch ON (II): battery voltage With ignition switch OFF: battery voltage for about 10 seconds, then about 0 V |
||||
| 2 | WHT/BLU(1) BRN(2) |
VBU (VOLTAGE BACK UP) | Power source for MCM circuit and DTC memory | Battery voltage at all times | ||||
| 3 | YEL/BLK(1) PNK(2) |
IG1 | MCM power | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V |
||||
| 4 | BLK | PG1 (POWER GROUND) | Ground for MCM | Less than 0.1 V at all times | ||||
| 6 | LT GRN | IGHLD2 (IGNITION HOLD 2) | Drives MCM relay 2 | With ignition switched from ON (II) to OFF: about 0 V for several seconds | ||||
| 7 | ORN(1) PUR(2) |
IGHLD (IGNITION HOLD) | Drives MCM relay 1 | With ignition switched from ON (II) to OFF: 0-1.0 V for several seconds, then battery voltage | ||||
| 8 | WHT | IMACANH (IMA CAN COMMUNICATION SIGNAL HIGH) | PCM and MCM communication signal | With ignition switch ON (II): pulses | ||||
| 9 | RED | IMACANL (IMA CAN COMMUNICATION SIGNAL LOW) | PCM and MCM communication signal | With ignition switch ON (II): pulses | ||||
| 25 | GRY | SCIDM (SERIAL INPUT FOR DC-DC CONVERTER) | Detects pulsing communication signal | With ignition switch ON (II): pulses | ||||
| 26 | GRN | SCIMD (SERIAL OUTPUT FOR DC-DC CONVERTER) | Sends pulsing communication signal | With ignition switch ON (II): pulses | ||||
| 28 | LT BLU | FANCTL (FAN CONTROL) | IPU module fan speed control signal output | IPU module fan OFF: battery voltage IPU module fan ON: duty controlled |
||||
| 30 | WHT | CANH (CAN COMMUNICATION SIGNAL HIGH) | Sends pulsing communication signal | With ignition switch ON (II): pulses | ||||
| 31 | RED | CANL (CAN COMMUNICATION SIGNAL LOW) | Sends pulsing communication signal | With ignition switch ON (II): pulses | ||||
|
||||||||