Toyota Celica 2005 Repair Manual page 1064

DTC C1241/41
CIRCUIT DESCRIPTION
This is the power source of ECU, hence of CPU, and of the ABS actuator.
DTC No.
Condition 1. or 2. is detected:
1. Vehicle speed is at 3 km/h (1.9 mph) or more and ECU
terminal IG1 voltage is 9.5 V or less, which continues for
C1241/41 10 sec. or more
2. When IG terminal voltage is less than 9.5 V, there is
open circuit in the motor relay or in the solenoid relay, or
the solenoid circuit malfunction.
WIRING DIAGRAM
I10
Ignition SW
1
IG1
AM1
W
B−R
FL MAIN
Battery
2005 CELICA (RM1131U)
DIAGNOSTICS
DTC Detection Condition
Instrument Panel J/B
ABS−IG
A
IG1 Relay
3
8
L−R
IK
2 1
AM1
5
IK
Engine Room J/B
ALT
1
2A
1
− ANTI−LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
IG Power Source Circuit
S Battery
S Charging system
S Power source circuit
3
B−O
IG
2
5
12
W−B
II
2
1
IA
1
B−R
2E
2
1063
Trouble Area
Skid Control ECU
with Actuator
25
13
B−O
S11
IE3
2
W−B
S11
24
W−B
S11
W−B
EB
IF
DI−863
DI6SP−12
IG1
GND1
GND2
F17699