BAT/Brakes, ABS & TRAC Systems — Dtc 41 Ig Power Source Circuit Circuit Description, page 142

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