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 > Park / Neutral Position Switch: Removal
REMOVAL PROCEDURE 1. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY (a) Remove the nut and disconnect the cable. 2. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (a) Disconnect the switch connector. (b) Remove the nut, spring washer and transmission control shaft lever RH. (c) Using a screwdriver, be ...