No Answer-Back

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No Answer-Back; 2013 MY FR-S [03/2012 -]
- No Answer-Back

DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning light and/or wireless door lock buzzer answer-back function(s) does not operate. In such cases, hazard warning light and wireless door lock buzzer signal outputs from the main body ECU (network gateway ECU) may be malfunctioning.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (ANSWER-BACK OPERATION)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Utility / Customize / Wireless Door Lock.

(e) Select the setting by referring to the table below.





Result:





B -- PERFORM CUSTOMIZE FUNCTION Customize Parameters
A -- Continue to next step.

2. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

(a) Check the wireless door lock control function using the door control transmitter module set sub-assembly.

Result:





B -- GO TO PROBLEM SYMPTOMS TABLE Problem Symptoms Table
A -- Continue to next step.

3. CHECK WIRELESS ANSWER-BACK OPERATION

(a) Check the wireless answer-back operation using the door control transmitter module set sub-assembly.

Result:





B -- HAZARD WARNING LIGHTS OPERATION
A -- Continue to next step.

4. PERFORM ACTIVE TEST USING TECHSTREAM (WIRELESS DOOR LOCK BUZZER)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Main Body





Result:





B -- REPLACE MAIN BODY ECU (NETWORK GATEWAY ECU) Removal
A -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU)

(a) Disconnect the A63 wireless door lock buzzer connector.

(b) Disconnect the A73 main body ECU (network gateway ECU) 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.

6. REPLACE WIRELESS DOOR LOCK BUZZER

(a) Temporarily replace the wireless door lock buzzer with a new one Removal.

NEXT -- Continue to next step.

7. CHECK WIRELESS DOOR LOCK BUZZER OPERATION

(a) Check the operation of the wireless answer-back function.

OK:

Wireless answer-back function operates normally.

NG -- REPLACE MAIN BODY ECU (NETWORK GATEWAY ECU) Removal

OK -- END (WIRELESS DOOR LOCK BUZZER WAS DEFECTIVE)

8. HAZARD WARNING LIGHTS OPERATION

(a) Check that the hazard warning light blinks when the hazard warning signal switch is pressed.

OK:

Hazard warning light signal is normally.

NG -- GO TO LIGHTING SYSTEM (PROBLEM SYMPTOMS TABLE) Exterior Lighting System
OK -- Continue to next step.

9. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Remove the instrument panel junction block assembly Removal.

(b) Remove the main body ECU (network gateway ECU) from the instrument panel junction block assembly.

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









Standard Resistance:





NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Removal

OK -- REPLACE MAIN BODY ECU (NETWORK GATEWAY ECU) Removal