B2276

2AR-FE STARTING: SMART KEY SYSTEM: B2276: ACCR Signal Circuit Malfunction
B2276 - ACCR Signal Circuit Malfunction

DESCRIPTION

This DTC is stored when a malfunction is detected in the ACCR signal output by the main body ECU.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WHETHER DTC OUTPUT RECURS

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG) and turn the Techstream on.

(c) Enter the following menus: Body Electrical / Main Body / Trouble Codes.

(d) Clear the DTCs.

(e) Check whether DTC B2276 recurs 50 seconds or more after the engine switch is turned on (IG).

Result





B -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure
A -- Continue to next step.

2. CHECK MAIN BODY ECU (ACCR VOLTAGE)

(a) Disconnect the E17 main body ECU connector.





(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- CHECK MAIN BODY ECU
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

(a) Disconnect the E17 main body ECU connector.





(b) Disconnect the B30 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK MAIN BODY ECU

(a) Temporarily replace the main body ECU (instrument panel junction block) with a new or normally functioning one.

(b) Check whether DTC B2276 recurs by repeating the "CHECK WHETHER DTC OUTPUT RECURS" procedures above.

OK:

No DTC is output.

NG -- GO TO SFI SYSTEM How to Proceed with Troubleshooting

OK -- END (MAIN BODY ECU IS DEFECTIVE)