DESCRIPTION
Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc.
PROCEDURE
1. |
PERFORM TEST MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CIRCUIT) |
(a) Using the Techstream, perform a Test Mode (Signal Check) inspection sensor check and check that speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.
Click here
Chassis > ABS/VSC/TRAC/EPB > Utility
Tester Display |
---|
Signal Check |
OK:
Speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.
Proceed to |
|
---|---|
OK (for Front) |
A |
OK (for Rear) |
B |
NG |
C |
NOTICE:
HINT:
The rear speed sensor and rear speed sensor rotor are incorporated into the rear axle hub and bearing assembly.
If the rear speed sensor and rear speed sensor rotor need to be replaced, replace the rear axle hub and bearing assembly.
A |
CLEAN FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR |
B |
REPLACE REAR AXLE HUB AND BEARING ASSEMBLY |
C |
INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT |
Toyota CH-R Service Manual > Vacuum Pump: Inspection
INSPECTION
PROCEDURE
1. INSPECT VACUUM PUMP VANE
(a) Check that the vacuum pump vane or vacuum pump vane caps are not
damaged or excessively worn out.
HINT:
If the vacuum pump vane or vacuum pump vane caps are damaged or excessively
worn out, replace the damaged parts wit ...
Toyota CH-R Service Manual > Meter / Gauge System: Speed Signal Circuit
DESCRIPTION
The combination meter assembly receives the vehicle speed signal from this circuit.
The wheel speed sensors produce an output that varies according to the vehicle speed.
The wheel speed sensor output is received by the skid control ECU (brake actuator
assembly) which uses this inf ...