Toyota Tacoma (2015-2018) Service Manual: Brake
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. INSPECT BRAKE LINE PIPES AND HOSES
HINT:
Work in a well-lighted area. Turn the front wheels fully to the right or left before beginning.
(a) Check all the brake lines and hoses for:
- Damage
- Wear
- Deformation
- Cracks
- Corrosion
- Leaks
- Bends
- Twists
(b) Check all the clamps for tightness and the connections for leakage.
(c) Check if the hoses and lines are not near sharp edges, moving parts and the exhaust system.
(d) Check if the lines are installed pass through the center of the grommets.
2. INSPECT FRONT BRAKE PADS AND DISCS
HINT:
- (See page
.gif)
) - If a squealing or scraping noise is heard from the brake while driving, check the pad wear indicator.
- If there are traces of the indicator contacting the disc rotor, the disc pad should be replaced.
3. INSPECT REAR BRAKE DRUM
HINT:
See page
4. INSPECT BRAKE FLUID
Fluid:
SAE J1703 or FMVSS No. 116 DOT3
HINT:
- for Hydraulic Brake Booster (See page
)
- for Vacuum Brake Booster (See page )
Body
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY
(a) Tighten the bolts and nuts on the chassis parts listed below, if necessary.
Front axle ...
Chassis
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. INSPECT STEERING LINKAGE
(a) Check the steering wheel free play (See page
).
(b) Check the steering linkage for looseness or damage.
(1) ...
Other materials:
Open in Pump Motor Circuit (C1251)
DESCRIPTION
The motor relay (semiconductor relay) is built into the master cylinder solenoid
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1251
...
Brake Switch "A" Circuit (P0571)
DESCRIPTION
Detection condition 1:
When the brake pedal is depressed, the stop light switch assembly outputs
a signal to the ECM. When the ECM receives the signal, it cancels control
of vehicle speed by the dynamic radar cruise control system. The fail-safe
function operates to ...
Check Bus 5 Line for Short to GND
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there
is no resistance between terminal 15 (CA5H) of the central gateway ECU (network
gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central
gateway ECU (network gateway ECU) and ...
