B2276

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

DESCRIPTION

The power source control ECU and the ECM are connected by the cable and BEAN.

If the cable information and BEAN information are inconsistent, this DTC will be output.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC OUTPUT

(a) Delete the DTC Reading and Clearing Diagnostic Trouble Codes.

HINT
After all DTCs are cleared, check if the trouble occurs again 50 seconds after the engine switch is turned on (IG).

(b) Check for DTCs again.

OK:

No DTC is output.

NG -- INSPECT POWER SOURCE CONTROL ECU

OK -- END

2. INSPECT POWER SOURCE CONTROL ECU

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

Voltage:

HINT
Voltage is output only when the engine is cranking.

NG -- CHECK POWER SOURCE CONTROL ECU OPERATION
OK -- Continue to next step.

3. CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - ECM)

(a) Disconnect the D44 ECU connector.

(b) Disconnect the A55 ECM connector.

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

4. CHECK POWER SOURCE CONTROL ECU OPERATION

(a) After replacing the power source control ECU with a normally functioning ECU, check that the engine starts.

OK:

Engine can start normally.

NG -- GO TO SFI SYSTEM

OK -- END (POWER SOURCE CONTROL ECU DEFECTIVE)