B2277

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): B2277: Detecting Vehicle Submersion
B2277 - Detecting Vehicle Submersion

DESCRIPTION

This DTC is stored when the submersion circuit monitor inside the power source control ECU detects that the vehicle is submerged in water.





INSPECTION PROCEDURE

NOTICE:
When the power source control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTC Smart Access System With Push-Button Start (for Start Function).

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

(c) After 330 seconds have elapsed, check for DTCs.

Result:





HINT
If there are any signs that water was present, before replacing the power source control ECU, take measures to prevent any further water entry.

B -- REPLACE POWER SOURCE CONTROL ECU Removal

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting