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