Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GMAY |
Model Year Start: 2020 |
Model: GR Corolla |
Prod Date Range: [01/2019 - 09/2019] |
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Blind Spot Monitor Sensor Communication Stop Mode; 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019] |
Blind Spot Monitor Sensor Communication Stop Mode
|
DESCRIPTION
Detection Item
|
Symptom
|
Trouble Area
|
Blind Spot Monitor Sensor Communication Stop Mode
|
Any of the following conditions are met:
-
Communication stop for "Blind Spot Monitor Master" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
-
Communication stop history for "Blind Spot Monitor Master" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Blind Spot Monitor Master" is 6 or more.)
Click here
-
Communication system DTCs (DTCs that start with U) that correspond to "Blind Spot Monitor Sensor Communication Stop Mode" in "DTC Combination Table" are output.
Click here
|
-
Blind spot monitor sensor LH branch line or connector
-
Power source circuit of blind spot monitor sensor LH
-
Blind spot monitor sensor LH ground circuit
-
Blind spot monitor sensor LH
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
-
Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
-
When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.
PROCEDURE
1.
|
CHECK FOR OPEN IN CAN BUS LINES (BLIND SPOT MONITOR SENSOR LH BRANCH LINE)
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the O57 blind spot monitor sensor LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O57-2 (CA1P) - O57-7 (CA1N)
|
Cable disconnected from negative (-) battery terminal
|
54 to 69 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)
|
|
|
NG |
|
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (BLIND SPOT MONITOR SENSOR LH)
|
OK
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O57-10 (BLGD) - Body ground
|
Cable disconnected from negative (-) battery terminal
|
Below 1 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)
|
|
|
(b) Reconnect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
O57-5 (BLB) - Body ground
|
Ignition switch ON
|
11 to 14 V
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
|
|