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Code 2-2 Hino Abs

This document provides instructions for using blink code diagnostics to troubleshoot issues with a Meritor WABCO C Version Hydraulic ABS system. It describes identifying blink codes, measuring specified pin locations, comparing measurements to correct values in Table B, and following the action required column. Table B lists fault codes, problem areas, pin locations to test, correct volt and ohm readings, and actions required to address issues.

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maria andre
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11K views1 page

Code 2-2 Hino Abs

This document provides instructions for using blink code diagnostics to troubleshoot issues with a Meritor WABCO C Version Hydraulic ABS system. It describes identifying blink codes, measuring specified pin locations, comparing measurements to correct values in Table B, and following the action required column. Table B lists fault codes, problem areas, pin locations to test, correct volt and ohm readings, and actions required to address issues.

Uploaded by

maria andre
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Section 2

Troubleshooting and Testing

Using Blink Code Diagnostics, Continued


NOTE 1. Identify and record the blink code. Blink codes
Meritor WABCO recommends using the Meritor are identified in Columns 1 and 2.
WABCO test adaptor and a volt-ohm meter to 2. Measure the pins indicated. Pin locations to be
obtain these measurements. tested are listed in Column 3.
Use the information in Table B, Meritor WABCO 3. Compare the measurement received against
C Version Hydraulic ABS Fault Codes, to identify a the correct volt or ohm measurement listed in
fault, check for proper volt or ohm measurements Column 4.
and repair the fault.
4. Follow the instructions listed in Column 5.

Table B Meritor WABCO C Version Hydraulic ABS Blink Codes


Ignition Key ON to Determine ABS
Blink Code Fault Ignition Key OFF to Test System (except where noted)

1 2 3 4 5
Pin
Locations Correct Volt and
To Be Ohm Meter
Fault Code Problem Area Tested Readings Action Required
1-1 System OK

2-0 Internal ECU fault Replace ECU.

2-1 Internal ECU fault Replace ECU.

2-2 Recirculation pump 11 and 27 0 volts Check the recirculation


operates continuously 30 and 27 pump wiring, the pump
(pump does not relay and the wiring
switch off). connections. Repair or
replace as required.

2-3 Recirculation pump does 9 and 11 12 volts DC Check the recirculation


not operate (pump does 27 and 30 Turn Ignition ON pump wiring, the pump
not switch on). relay and fuse and pump
connections. Repair or
replace as required.

2-4 Recirculation pump Link pins 9 Turn Ignition ON Excessive current failure.
motor locked. and 11 If pump does not run
when pins are linked,
replace modulator
assembly.

2-5 Erratic wheel speed Check for tire size


mismatch or tooth wheel
difference. Check sensor,
sensor cable and
connector for intermittent
contact. Make necessary
repairs.

Page 7

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