DESCRIPTION This circuit is from the parking brake switch assembly to the radio and display receiver assembly. WIRING DIAGRAM PROCEDURE
(b) Check that the display changes between ON and OFF according to the parking brake operation. OK:
HINT: This display is updated once per second. As a result, it is normal for the display to lag behind the actual parking brake operation.
(a) Disconnect the J139 radio and display receiver assembly connector. (b) Disconnect the A5 parking brake switch assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the parking brake switch assembly (See page ). (b) Inspect the parking brake switch assembly (See page ).
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Toyota Tundra Service Manual > Wireless Door Lock Control System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: The wireless door lock control system troubleshooting procedures are based on the premise that the power door lock system is operating normally. Check the power door lock system first before troubleshooting the wireless door lock control system. Click here Use these pro ...