Last Modified: 06-05-2026 6.11:8.1.0 Doc ID: RM100000001H93F
Model Year Start: 2020 Model: Corolla HV Prod Date Range: [01/2019 - 09/2022]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for HV Model (w/o Safe Exit Assist Function)): DTC CHECK / CLEAR; 2020 - 2022 MY Corolla HV [01/2019 - 09/2022]

DTC CHECK / CLEAR

1. CHECK DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the blind spot monitor system on.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Trouble Codes.

HINT:

The blind spot monitor sensor RH and the blind spot monitor sensor LH both output DTCs. Therefore, check both blind spot monitor sensors for DTCs.

Body Electrical > Blind Spot Monitor Master > Trouble Codes

Body Electrical > Blind Spot Monitor Slave > Trouble Codes

(f) Check for DTCs.

Click here 2020 MY Corolla HV [01/2019 - 04/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for HV Model (w/o Safe Exit Assist Function)): DIAGNOSTIC TROUBLE CODE CHART 2021 - 2022 MY Corolla HV [04/2020 - 09/2022]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for HV Model (w/o Safe Exit Assist Function)): DIAGNOSTIC TROUBLE CODE CHART

2. CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the blind spot monitor system on.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Trouble Codes.

Body Electrical > Blind Spot Monitor Master > Clear DTCs

Body Electrical > Blind Spot Monitor Slave > Clear DTCs

(f) Clear the DTCs.