Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 D Doc ID: RM000005V9Y000X
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster): CHECK FOR
INTERMITTENT PROBLEMS; 2016 MY Tacoma [08/2015 - ]
CHECK FOR INTERMITTENT PROBLEMS
1. CHECK FOR INTERMITTENT PROBLEMS
HINT:
A
momentary interruption (open circuit) in the connectors and/or wire harnesses between the sensors and
ECUs can be detected using the ECU Data List 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) Follow the directions on the Techstream to display the Data List and 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 ON (initial check).
If the Error display remains displayed, measure the resistance between the ECUs and sensors, or between
ECUs.
The Error display on the Techstream will remain displayed for 1 second after the harness signal changes
from momentary interruption (open circuit) to the normal condition.
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
Deceleration sensor open circuit detection/
Error or Normal
Normal -
cardiagn.com

Leave a Reply

Your email address will not be published. Required fields are marked *