Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 D Doc ID: RM000001DX102QX
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster): CHECK FOR
INTERMITTENT PROBLEMS; 2016 MY Tacoma [08/2015 - ]
CHECK FOR INTERMITTENT PROBLEMS
1. DESCRIPTION
HINT:
A
momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and
ECUs can be detected through the ECU data monitor function of the Techstream.
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
(f) Select areas where momentary interruptions should be monitored.
HINT:
A momentary interruption (open circuit) cannot be detected for 3 seconds after the ignition switch is
turned to ON (initial check).
If Error is displayed, check for continuity between the ECUs and the sensors or between ECUs.
Error remains displayed on the Techstream for 1 second after the harness signal changes from a
momentary interruption (open circuit) to normal.
ABS/VSC/TRAC
TESTER DISPLAY MEASUREMENT ITEM/RANGE NORMAL
CONDITION
DIAGNOSTIC
NOTE
FR Speed Open
Front speed sensor RH open circuit detection/
Error or Normal
Normal -
FL Speed Open
Front speed sensor LH open circuit detection/
Error or Normal
Normal -
RR Speed Open
Rear speed sensor RH open circuit detection/
Error or Normal
Normal -
RL Speed Open
Rear speed sensor LH open circuit detection/
Error or Normal
Normal -
EFI Communication Open
ECM communication open circuit detection/
Error or Normal
Normal -
Yaw Rate Open
Yaw rate and acceleration sensor open circuit
detection/
Error or Normal
Normal -
Deceleration Open
Acceleration sensor open circuit detection/
Error or Normal
Normal -
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