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ABS Components
OTC Troubleshooting (cont'd)
DTC 81: CPU (Central Processing Unit)
1. Clear the DTC, then disconnect the Honda PGM
Tester.
2. Test-drive the vehicle.
Does the ABS indicator come on and is DTC 81
indicated?
YES-Replace the ASS modulator-control unit .•
NO- The system is OK at this time .•
19-52
ASS Indicator Circuit
Troubleshooting
ABS indicator does not come on
1. Turn the ignition switch ON (II), and watch the ABS
indicator.
Does the ABS indicator come on?
YES- The system is OK at this time .•
NO-Go to step 2.
2. Pull up the parking brake lever.
Does the brake system indicator come on?
YES-Go to step 3.
NO- Repair open in the indicator power source
circuit. If necassary, substitute a known-good ASS
modulator-control unit. and recheck .•
• Blown No. 10 (7.5A) fuse.
• Open in the wire between the No. 10 (7.5A) fuse
and the gauge assembly.
• Open circuit inside the fuse box.
3. Turn the ignition switch OFF.
4. Disconnect the ASS control unit 31 P connector.
5. Turn the ignition switch ON (II).
Does the ABS indicator come on?
YES-Check for loose terminals in the ASS control
unit 31 P connector. If necessary, substitute a
known-good ABS modulator-control unit. and
recheck .•
NO-Go to step 6.
6. Turn the ignition switch OFF.
7. Remove the gauge assembly (see page 22-64).
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Table of Contents
Troubleshooting
