B2281

2GR-FE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2281: "P" Signal Malfunction
B2281 - "P" Signal Malfunction

DESCRIPTION

The ECM and the shift lock control ECU are connected by a cable and the CAN. If the cable information and CAN information are inconsistent, this DTC will be output.

HINT
After the main body ECU is replaced, perform the registration procedures for the engine immobilizer system Registration.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect Techstream to the DLC3.

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

(c) Read the DATA LIST according to the displays on the tester.

Main Body:

OK:

"ON" (P signal is ON) and "OFF" (P signal is OFF) appears on the screen.

HINT
If the result is not as specified, there may be a malfunction with the shift lock control ECU Testing and Inspection.

NG -- CHECK WIRE HARNESS (MAIN BODY ECU - SHIFT LOCK CONTROL ECU)

OK -- GO TO SHIFT CONTROL SYSTEM

2. CHECK WIRE HARNESS (MAIN BODY ECU - SHIFT LOCK CONTROL ECU)

(a) Disconnect the E58 and E77 ECU connectors.

(b) 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.

3. CHECK MAIN BODY ECU OPERATION

(a) After replacing the main body ECU with a normally functioning ECU, check that the engine can start normally. Make sure the brake pedal is depressed and the shift position is P at this time.

(b) Check that the engine switch mode can be changed by pushed the engine switch.

HINT
Without depressing the brake pedal, push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off. With the brake pedal depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.

OK:

Engine can start normally.

HINT
If engine does not start, Engine Does Not Start.

NG -- GO TO OTHER PROBLEM

OK -- END (MAIN BODY ECU DEFECTIVE)