DTC B2276: ACCR Signal Circuit Malfunction: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Check whether DTC B2276 is output 50 seconds or more after the engine switch is turned on (IG).
   RESULT
   
   

   Result	Proceed to
   DTC B2276 output	A
   No DTC output	B

B → See step   4 

A: Go to next step 

Fig 1: Identifying Main Body ECU And ECM Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the E2 main body ECU connector.
2. Disconnect the A38 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E2-3 (ACCR) - A38-41 (ACCR)	Always	Below 1 Ω
   E2-3 (ACCR) or A38-41 (ACCR) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 2: Identifying Main Body ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E2-3 (ACCR) - Body ground	Engine switch pressed and engine cranking	11 to 14 V

NG → REPLACE MAIN BODY ECU 

OK → See step   5