Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000270A4 |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 -
] |
Title: NETWORKING: CXPI COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] |
HOW TO PROCEED WITH TROUBLESHOOTING
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CAUTION / NOTICE / HINT
HINT:
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Use these procedures to troubleshoot the CXPI communication system.
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*: Use the GTS.
PROCEDURE
1.
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VEHICLE BROUGHT TO WORKSHOP
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NEXT
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2.
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INSPECT AUXILIARY BATTERY VOLTAGE
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(a) Measure the auxiliary battery voltage with the ignition switch off.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
NEXT
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3.
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CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
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(a) Using the GTS, check for CAN communication system DTCs.
for HEV Model: Click here
for Gasoline Model: Click here
Result
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Proceed to
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CAN DTCs are not output
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A
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CAN DTCs are output
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B
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B |
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GO TO CAN COMMUNICATION SYSTEM
for HEV Model: Click here
for Gasoline Model: Click here
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A
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4.
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CHECK POWER INTEGRATION SYSTEM*
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(a) Use the GTS to check if the power integration system is functioning normally.
Body Electrical > Power Distribution Box > Trouble Codes
Result
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Proceed to
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Power integration system DTCs are not output
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A
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Power integration system DTCs are output
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B
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A
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(a) Check for DTCs and make a note of any codes that are output.
Body Electrical > Main Body > Trouble Codes
(b) Clear the DTCs.
Body Electrical > Main Body > Clear DTCs
(c) Recheck for DTCs.
Body Electrical > Main Body > Trouble Codes
Result
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Proceed to
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No DTCs output
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A
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DTCs output
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B
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B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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A
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6.
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OVERALL ANALYSIS AND TROUBLESHOOTING*
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(a) Data List / Active Test
Click here
(b) Terminals of ECU
Click here
NEXT
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7.
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ADJUST, REPAIR OR REPLACE
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NEXT |
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END
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