Multiplex Communication Circuit - Toyota Celica 2005 Repair Manual

DI−1184

Multiplex Communication Circuit

CIRCUIT DESCRIPTION
Signals are transmitted between ECM and the combination meter through the communication circuit.
WIRING DIAGRAM
Engine
Control Module
10
MPX1
E3
(*1) (*2)
6
MPX2 E2
(*1) (*2)
*1: 1ZZ−FE
*2: 2ZZ−GE
2005 CELICA (RM1131U)
DIAGNOSTICS
4
18
E8
IE5
LG−R
29 13
E8 IE5
G−O
− BODY CONTROL SYSTEM
Combination Meter
12
LG−R
C12 MPX+
18
G−O
MPX−
C13
1384
1
17
Y−G
L
C13
3
R−L
TX+ C13
DI6RC−04
Body ECU
B6 L
16
B6 MPX1
I26575