B2275

THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): B2275: STSW Monitor Malfunction
B2275 - STSW Monitor Malfunction

DESCRIPTION

This DTC is stored when a malfunction is detected in the starter circuit inside the power management control ECU.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When the power management control ECU is replaced with a new one and the cable from the negative (-) auxiliary battery terminal is connected, the power source mode becomes the on (IG) mode. When the auxiliary battery is removed and reinstalled, the power source mode that was selected when the auxiliary battery was removed is restored.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)
OK -- Continue to next step.

3. CHECK FOR DTC

(a) Clear the DTC Smart Key System (for Start Function).

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

(c) After 25 seconds have elapsed, check if the DTC has been set again.

OK:

DTC B2275 is not output.

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

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Removal