Function, structure, operation of body control (Information Module)

1. Information module overview

The information module is an integrated control unit with the following functions.

  • CAN communication function
  • DRM function
  • Data recording function
  • Self-diagnosis function

2. Function of information module

1. CAN communication function

The information module receives signals from each control unit via the Powertrain and Chassis CAN communication circuits. Also, it receives signals from the control unit connected to Body or Information CAN communication circuit via the central gateway control unit.

2. DRM function

This function is for recording control data before and after a failure in the engine, etc., is detected, and for assisting with irreproducible trouble diagnoses. The data accumulated before and after failure occurrences and from driving conditions is used to perform the trouble diagnosis.

3. Self-diagnosis function

If the function is not operating correctly, the DTC is set.

3. Information module component views

1. Information module

The information module is installed to the driver-side dash side panel.

LHD models

Legend

  1. Information module

RHD models

Legend

  1. Information module

4. General circuit diagram

1. Information module schematic circuit diagram

2. Information module outline view and connector pin layout

Connector (24 pin)
PIN No.
Pin function
1
Ignition power supply
2
-
3
Ground
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
Chassis CAN (High)
12
Powertrain CAN (High)
13
Battery power supply
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
Chassis CAN (Low)
24
Powertrain CAN (Low)