Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001CBOJ |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 01/2019] |
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Radio Receiver Assembly Communication Stop Mode; 2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019] |
Radio Receiver Assembly Communication Stop Mode
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DESCRIPTION
Detection Item
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Symptom
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Trouble Area
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Radio Receiver Assembly Communication Stop Mode
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Any of the following conditions are met:
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Communication stop for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
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Communication stop history for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Display and Navigation (AVN)" is 6 or more.)
Click here
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Communication system DTCs (DTCs that start with U) that correspond to "Radio Receiver Assembly Communication Stop Mode" in "DTC Combination Table" are output.
Click here
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Radio and display receiver assembly branch line or connector
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Power source circuit of radio and display receiver assembly
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Radio and display receiver assembly ground circuit
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Radio and display receiver assembly
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
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Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
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When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.
PROCEDURE
1.
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CHECK FOR OPEN IN CAN BUS LINES (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH LINE)
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(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I56 radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I56-13 (CANH) - I56-14 (CANL)
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Cable disconnected from negative (-) battery terminal
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54 to 69 Ω
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*a
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Front view of wire harness connector
(to Radio and Display Receiver Assembly)
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|
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NG |
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REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY)
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OK
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2.
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CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
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(a) Disconnect the I55 radio and display receiver assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
*a
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Front view of wire harness connector
(to Radio and Display Receiver Assembly)
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-
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-
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Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I55-1 (GND1) - Body ground
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Cable disconnected from negative (-) battery terminal
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Below 1 Ω
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(c) Reconnect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
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Condition
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Specified Condition
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I56-19 (IG) - Body ground
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Engine switch on (IG)
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11 to 14 V
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I55-4 (+B1) - Body ground
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Always
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11 to 14 V
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I55-15 (ACC1) - Body ground
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Engine switch on (ACC)
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11 to 14 V
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OK |
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REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
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for Audio and Visual System
Click here
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for Navigation System
Click here
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
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