Toyota Tacoma (2015-2018) Service Manual: Parking Brake Switch Circuit
DESCRIPTION
This circuit is from the parking brake switch assembly to the navigation receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK VEHICLE SIGNAL (OPERATION CHECK) |
|
(a) Display the "Vehicle Signal Check Mode" screen (See page
|
|
(b) Check that the display changes between ON and OFF according to the parking brake operation.
OK:
|
Parking Brake Condition |
Display |
|---|---|
|
Applied |
ON |
|
Released |
OFF |
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.
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY) |
(a) Disconnect the N25 navigation receiver assembly connector.
(b) Disconnect the P6 parking brake switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N25-15 (PKB) - P6-1 |
Always |
Below 1 Ω |
|
N25-15 (PKB) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT PARKING BRAKE SWITCH ASSEMBLY |
(a) Remove the parking brake switch assembly.
(b) Inspect the parking brake switch assembly.
- for Hydraulic Brake Booster: See page
.gif)
- for Vacuum Brake Booster: See page
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPLACE PARKING BRAKE SWITCH ASSEMBLY |
Illumination Circuit
DESCRIPTION
Power is supplied to the navigation receiver assembly and steering pad switch
assembly illumination when the light control switch is in the TAIL or HEAD position.
WIRING DIAGRAM
CAU ...
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the stereo component amplifier assembly*1
or navigation receiver assembly*2 detects it and stops output to the speakers.
Thus sound cannot be ...
Other materials:
Traffic Information is not Displayed
CAUTION / NOTICE / HINT
NOTICE:
Traffic information requires payment. An "XM Nav Traffic" contract must
be made between the satellite radio company and the user. If the contract
expires, traffic information will not be available.
Traffic information does not apply to ...
Manual Transmission Oil
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MANUAL TRANSMISSION OIL
(a) Park the vehicle on a level surface.
(b) Remove the transmission filler plug and gasket.
(c) Check that the oil level is between 0 to 5 mm (0 to 0 ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY (AIR CONDITIONING CONTROL ASSEMBLY)
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component withou ...
