Honda Odyssey Service Manual: Rear A/C Control Unit   Inputs and Outputs

1

LT GRN

IG2

IG2 power supply

With ignition switch ON (II): battery voltage

2

BLU

BLW-V-Rr

Feedback signal of power rear transistor drain voltage

With ignition switch ON (II): about 0 V-battery   voltage (depending on rear blower motor speed)

3

BLK

GND

Ground for rear A/C control unit (G652)

Less than 0.2 V at all times

4

WHT

BLW-G-Rr

Outputs rear power transistor gate voltage

With ignition switch ON (II) and fan control button OFF: less than 0.2 V
   With ignition switch ON (II) and fan control button ON: about 4.0 V-battery   voltage (depending on rear blower motor control)

5

ORN

BUS-DATA

Front-Rear communication

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