B2281

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): B2281: "P" Signal Malfunction
B2281 - "P" Signal Malfunction

DESCRIPTION

The power source control ECU and the shift lock control ECU are connected by a cable and the BEAN. If the cable information and BEAN information are inconsistent, this DTC will be stored.

HINT
When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK MULTIPLEX COMMUNICATION SYSTEM

(a) Clear the DTC Smart Access System With Push-Button Start (for Start Function).

(b) Check for multiplex network communication system DTCs B1210, B1214 and B1215.

HINT
If the DTCs for the multiplex network communication system malfunction are output, inspect those DTCs first.

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM Multiplex Communication System
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Power Source Control / Data List.

(e) Read the Data List according to the display on the Techstream.

Power Source Control





Result:





C -- GO TO AUTOMATIC TRANSMISSION SYSTEM (for A960E) P0705

B -- GO TO AUTOMATIC TRANSMISSION SYSTEM (for A760E) P0705
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - SHIFT LOCK CONTROL ECU)

(a) Disconnect the J55 connector from the power source control ECU.





(b) Disconnect the J48 connector from the shift lock control ECU.

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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CONTROL ECU - SHIFT LOCK CONTROL ECU)
OK -- Continue to next step.

4. INSPECT SHIFT LOCK CONTROL ECU

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





Standard Resistance:





Text in Illustration





Result:





C -- REPLACE SHIFT LOCK CONTROL ECU (for A760E)

B -- REPLACE SHIFT LOCK CONTROL ECU (for A960E)

A -- REPLACE POWER SOURCE CONTROL ECU Removal