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MCM Inputs and Outputs at Connector B (24P)

Fig 1: Identifying MCM Connector B (24P) Terminals Layout
G06950232Courtesy of AMERICAN HONDA MOTOR CO., INC.
TERMINALS DESCRIPTION CHART

Terminal number Wire color Terminal name Description Signal
1 BLU/BLK NFAN (FAN CONTROL) IPU module fan signal input With ignition switch ON (II): about 5.0 V
IPU module fan ON: duty controlled
2 RED/YEL PRE (PRE CHARGE CONTACTOR) Drives bypass contactor With ignition switch ON (II): about 0 V
3 PUR/WHT ISOC (I. STATE OF CHARGE NORMAL RANGE) Battery current sensor signal input With engine running: about 0.5 - 4.5 V
4 Not used Not used    
5 Not used Not used    
6 RED R2 (MOTOR ROTOR POSITION SENSOR R2 SIGNAL) Motor rotor position sensor R2 signal input With engine running: pulses
7 BRN R1 (MOTOR ROTOR POSITION SENSOR R1 SIGNAL) Motor rotor position sensor R1 signal input With engine running: pulses
8 Not used Not used    
9 GRY CNTPG(CONTCTOR POWER GROUND) Ground for high voltage contactor Less than 0.2 V at all times
10 BLK CNT (CONTACTOR) Drives high voltage contactor With ignition switch ON (II): battery voltage
11 BLU/YEL TBATT2 (BATTERY 2 TEMPERATURE) Battery module TBATT2 temperature signal 2 input With ignition switch ON (II): about 0.5 - 4.5 V (depending on battery module temperature)
12 BLK/WHT ISOCF (I. STATE OF CHARGE FINE RANGE) Battery current sensor signal input With engine running: about 0.5 - 4.5 V
13 Not used Not used    
14 GRN/YEL SGISOC (I. STATE OF CHARGE SENSOR GROUND) Battery current sensor ground Less than 0.2 V at all times
15 WHT S3 (MOTOR ROTOR POSITION SENSOR S3 SIGNAL) Motor rotor position sensor S3 signal input With engine running: pulses
16 GRN S1 (MOTOR ROTOR POSITION SENSOR S1 SIGNAL) Motor rotor position sensor S1 signal input With engine running: pulses
17 YEL/RED VCCISOC (I. STATE OF CHARGE SENSOR VOLTAGE) Battery current sensor power With ignition switch ON (II): about 5.0 V
With ignition switch turned from ON (II) to LOCK (0): about 5.0 V for about 10 seconds, then about 0 V
18 Not used Not used    
19 Not used Not used    
20 WHT/GRN TBATT3 (BATTERY 3 TEMPERATURE) Battery module TBATT3 temperature signal 3 input With ignition switch ON (II): about 0.5 - 4.5 V (depending on battery module temperature)
21 YEL/GRN TBATT1 (BATTERY 1 TEMPERATURE) Battery module TBATT1 temperature signal 1 input With ignition switch ON (II): about 0.5 - 4.5 V (depending on battery module temperature)
22 GRN/BLK SGTB (BATTERY TEMPERATURE SENSOR GROUND) Battery module (temperature sensor) ground Less than 0.2 V at all times
23 YEL S4 (MOTOR ROTOR POSITION SENSOR S4 SIGNAL) Motor rotor position sensor S4 signal input With engine running: pulses
24 BLU S2 (MOTOR ROTOR POSITION SENSOR S2 SIGNAL) Motor rotor position sensor S2 signal input With engine running: pulses