
BR–142
BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)
DTC 41 IG Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for the ECU, hence the CPU and the actuators.
DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area
41 | When either of the following (1) or (2) is detected:
(1) Voltage at ECU terminal IG1 is less than
9.5 V for more than 10 sec. while engine
speed is 500 RPM or higher.
(2) Voltage at ECU terminal IG1 is more than
17 V for more than 5 sec. | Battery
IC regulator
Open or short in power source circuit
ECU
WIRING DIAGRAM
R/B No.2 R/B No.2 J/B No.1 J/B No.1 TRAC ECU
W W W B-Y B-R 26
ALT AM1 1B 1J 1J ECU-IG 1K T9 IG1
7 4
Ignition
Switch
B
W-B 14
Battery T9 GND
IG
R12468