Honda Accord 2008 Manual page 1539

07/11/02 09:36:26 61TA0000_190_0118
VSA System Components
DTC Troubleshooting (cont'd)
DTC 81-11: Central Processing Unit (CPU)
Internal Circuit Malfunction
DTC 81-52: Central Processing Unit (CPU)
Internal Circuit Malfunction
DTC 81-54: Central Processing Unit (CPU)
Internal Circuit Malfunction
DTC 81-56: Central Processing Unit (CPU)
Internal Circuit Malfunction
DTC 81-58: Central Processing Unit (CPU)
Internal Circuit Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle.
NOTE: Drive the vehicle on a straight section of
road, not on a lift.
4. Check for DTCs with the HDS.
Is DT C 81-11, 81-52, 81-54, 81-56, or 81-58
indicated?
YES − Go to step 5.
NO − Intermittent failure, the system is OK at this
time.
19-118
5. Update the VSA modulator-control unit if it does
not have the latest software (see page 19-140). If
the unit already has the latest software, substitute a
known-good VSA modulator-control unit (see page
19-141).
6. Test-drive the vehicle.
NOTE: Drive the vehicle on a straight section of
road, not on a lift.
7. Check for DTCs with the HDS.
Is DT C 81-11, 81-52, 81-54, 81-56, or 81-58
indicated?
YES − Check for loose terminals in the VSA
modulator-control unit 36P connector. If the VSA
modulator-control unit was updated, substitute a
known-good VSA modulator-control unit (see page
19-141), then retest. If the VSA modulator-control
unit was substituted, go to step 1.
NO − If the VSA modulator-control unit was
updated, troubleshooting is complete. If the VSA
modulator-control unit was substituted, replace the
original VSA modulator-control unit (see page
19-141). If any other DTCs are indicated, go to the
indicated DTCs troubleshooting.
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