Page text (OCR transcript)
BR–92
BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS)
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 vehicle speed is 3 km/h (1.9 mph) or more.
(2) Voltage at ECU terminal IG1 is more than 17 V for more than 1.2 sec.
Battery
IC regulator
Open or short in power source circuit
ECU
Fail safe function: If trouble occurs in the power source circuit, the ECU cuts off current to the ABS solenoid relay and prohibits ABS control.
WIRING DIAGRAM
R/B No.2 R/B No.2 J/B No.1 J/B No.1 ABS (& TRAC) ECU
W W 12 (w/o TRAC)
ALT AM1 1B 1J W P-Y 1J ECU-IG 1K B-R A19 A20 24 (w/ TRAC) IG1
B
8
Battery
Ignition Switch
7 4
W-B W-B
W-B A19 A20 2 25 GND1
W-B A15 A22 15 4 GND2
A22 GND3 (w/ TRAC)
R12468