Only in the sense that it taps into the speed sensor line. I don't see any way for the Rostra to ruin the ECU.
Agreed, however this assumes that the P.O. installed it correctly. Still, it's hard to determine how it could have been hooked up wrong and still work.
1A is a communication problem between the Meter and the ABS Hydraulic unit.
1B is a communication error of the ABS Hydraulic unit (it doesn't say exactly to where but I'm assuming with the ECU)
I'm fairly certain that the communication between the three (ECU, ABS Hydraulic unit, Meter) is all
CAN bus stuff which is way over my head.
I couldn't find any "28" code.
I agree with jwh20, "bravo sierra". I think a mouse chewing on the wiring might have more validity than the Rostra as the culprit.
I know if you put the front wheel back on with the ABS sensor perf plate on the wrong side that you'll get a code, but I think it's only one code not three. You would have told us if you just had the front wheel off, right?
I want to see the exact explanation of these codes.
1A KTRC Meter unit and K-ACT ABS hydraulic unit communication error (K-ACT ABS Equipped Models)
1B KTRC/K-ACT ABS K-ACT ABS hydraulic unit communication error (K-ACT ABS Equipped Models)
Couldn't find a 28..here is 27:
27 Front and/or Rear Wheel Rotation Sensor Signal (K-ACT ABS Equipped Models) Front and/or rear wheel rotation sensor must sends 48 signals (front) and 45
signals (rear) to the ECU at the 1 rotation of the wheels. If the front and/or rear wheel rotation sensor system fails (the signal is missing, wiring open), the ECU stops the KTRC control.
For 1A
17-84 SELF-DIAGNOSIS SYSTEM
Meter Unit and K-ACT ABS Hydraulic Unit Communication Error (Service Code
1A, K-ACT ABS Equipped Models)
Meter Unit and K-ACT ABS Hydraulic Unit
Communication Line Inspection
○When the data (for KTRC control) is not sent from the
meter unit and K-ACT ABS hydraulic unit to the ECU, the
service code 1A is displayed.
○The data is sent through the CAN communication line.
○The service code 1A is detected with the ECU.
○When the service code 1A was detected, the warning indicator
light (LED) and KTRC indicator light (LED)
go on, and KTRC warning message is displayed on the
LCD.
•Inspect the CAN communication line (see CAN Communication
Line Resistance Inspection in the Fuel System
(DFI) chapter).
If the CAN communication line is normal, check the following
parts.
Meter Unit (see Meter Unit Inspection in the Electrical
System chapter)
K-ACT ABS Hydraulic Unit (see K-ACT ABS Hydraulic
Unit Inspection in the Brakes chapter)
If the above parts are normal, check the ECU for its
ground and power supply (see ECU Power Supply Inspection
in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
For 1B
K-ACT ABS Hydraulic Unit Communication Error (Service Code 1B, K-ACT ABS
Equipped Models)
K-ACT ABS Hydraulic Unit Communication Line
Inspection
○When the data (for status of K-ACT ABS hydraulic unit) is
not sent from the K-ACT ABS hydraulic unit to the meter
unit and ECU, the service code 1B is displayed.
○The data is sent through the CAN communication line
○The service code 1B is detected with the meter unit.
○When the service code 1B was detected, the warning indicator
light (LED) , KTRC indicator light (LED) and
K-ACT ABS indicator light (LED) go on, and KTRC
warning message and K-ACT ABS warning message are
alternately displayed on the LCD.
•Inspect the CAN communication line (see CAN Communication
Line Resistance Inspection in the Fuel System
(DFI) chapter).
If the CAN communication line is normal, check the K
-ACT ABS hydraulic unit (see K-ACT ABS Hydraulic Unit
Inspection in the Brakes chapter).
If the K-ACT ABS hydraulic unit is normal, check the meter
unit(see Meter Unit Inspection in the Electrical System
chapter).
If the meter unit is normal, but the problem still exists, replace
the meter unit (see Meter Unit Removal/Installation
in the Electrical System chapter).
