RM38T0EC _57 Power Source / Network _111968 POWER DISTRIBUTION _0503878 POWER INTEGRATION SYSTEM C

POWER DISTRIBUTION  POWER INTEGRATION SYSTEM  B235A9F  IGR Diode Stuck Off  


DESCRIPTION

This DTC is output when a diode failure between the IGP input and the IGR input in the power distribution box assembly is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
B235A9F IGR Diode Stuck Off At the time of IGP input state ON, an IGR input state continues OFF state for three consecutive trips. Power distribution box assembly

WIRING DIAGRAM

E475530E02
2.271,0.375 3.76,0.688 1.49,0.313 10 false from Auxiliary Battery 0.969,3.385 3.802,3.563 2.833,0.177 10 false from Ignition or Starter Switch Assembly*2 0.958,4.125 3.875,4.458 2.917,0.333 10 false from Ignition or Starter Switch Assembly*2 4.125,0.552 5.365,0.719 1.24,0.167 10 false INP STD NO. 1 4.542,7.594 5.698,7.792 1.156,0.198 10 false Eatch Load 5.292,6.479 5.75,6.719 0.458,0.24 10 false CXPI 3.885,6.906 5.521,7.469 1.635,0.563 10 false Main Body ECU (Multiplex Network Body ECU) 0.979,4.875 3.948,5.188 2.969,0.313 10 false from Ignition or Starter Switch Assembly*2 0.229,7.625 3.896,7.823 3.667,0.198 10 false *1: w/ Smart Entry and Start System 0.219,8.052 3.885,8.25 3.667,0.198 10 false *2: w/o Smart Entry and Start System 0.552,8.448 4.219,8.646 3.667,0.198 10 false : CXPI Communication Line 0.344,4.458 4.063,4.708 3.719,0.25 10 false from Certification ECU (Smart Key ECU Assembly)*1 0.333,3.708 4.083,3.958 3.75,0.25 10 false from Certification ECU (Smart Key ECU Assembly)*1 0.333,2.958 4.083,3.135 3.75,0.177 10 false from Certification ECU (Smart Key ECU Assembly)*1 0.313,2.5 4.063,2.677 3.75,0.177 10 false from Certification ECU (Smart Key ECU Assembly)*1 5.406,0.396 5.74,0.563 0.333,0.167 10 false 8J 5.396,1.385 5.729,1.552 0.333,0.167 10 false 8K 5.396,2.969 5.729,3.135 0.333,0.167 10 false 8B 5.385,3.708 5.719,3.875 0.333,0.167 10 false 8B 5.396,4.469 5.729,4.635 0.333,0.167 10 false 8C 5.396,5.708 5.729,5.875 0.333,0.167 10 false 8C 5.396,5.198 5.729,5.365 0.333,0.167 10 false 8B 5.438,0.208 5.771,0.375 0.333,0.167 10 false 1 5.396,2.333 5.729,2.5 0.333,0.167 10 false 10 5.406,2.781 5.74,2.948 0.333,0.167 10 false 24 5.396,3.521 5.729,3.688 0.333,0.167 10 false 38 5.396,4.271 5.729,4.438 0.333,0.167 10 false 17 5.417,5.01 5.75,5.177 0.333,0.167 10 false 45 5.417,5.51 5.75,5.677 0.333,0.167 10 false 25 5.792,7.979 6.917,8.438 1.125,0.458 10 false Power Distribution Box Assembly 5.396,2.51 5.729,2.677 0.333,0.167 10 false 8B 5.396,1.896 5.729,2.063 0.333,0.167 10 false 8E 5.406,1.708 5.74,1.875 0.333,0.167 10 false 23 5.438,1.188 5.771,1.354 0.333,0.167 10 false 1 5.438,0.708 5.771,0.875 0.333,0.167 10 false 1 5.396,0.896 5.729,1.063 0.333,0.167 10 false 8H 4.125,1.063 5.365,1.229 1.24,0.167 10 false INP STD NO. 2 4.125,1.542 5.365,1.708 1.24,0.167 10 false INP STD NO. 3 4.354,2.031 5.188,2.25 0.833,0.219 10 false D/C CUT 2.271,0.865 3.76,1.177 1.49,0.313 10 false from Auxiliary Battery 2.271,1.365 3.76,1.677 1.49,0.313 10 false from Auxiliary Battery 2.271,1.865 3.76,2.177 1.49,0.313 10 false from Auxiliary Battery

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off to troubleshoot:

Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the GTS and vehicle begins.

·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

Before performing troubleshooting, check whether there are any malfunctions with the lighting system.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before performing troubleshooting, check whether there are any malfunctions with the air conditioning system.

for Manual Air Conditioning System with Mechanical Control Type: Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Manual Air Conditioning System with Mechanical Control Type)>HOW TO PROCEED WITH TROUBLESHOOTING

for Manual Air Conditioning System with Electrical Control Type: Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Manual Air Conditioning System with Electrical Control Type)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before performing troubleshooting, check whether there are any malfunctions with the window defogger system.

Click hereVehicle Exterior>WINDOW / GLASS>WINDOW DEFOGGER SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Power Distribution Box > Clear DTCs
50002 475

Result:
Proceed to
NEXT



NEXT

2.CHECK FOR DTC
2.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Power Distribution Box > Trouble Codes
50001 475

Result:
Result Proceed to
B235A9F is output A
B235A9F is not output B



A

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


B

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING