Honda Accord 2008 Manual page 1411

07/11/02 09:29:31 61TA0000_180_0078
TPMS
DTC Troubleshooting (cont'd)
DTC 81: TPMS Control Unit Failure
NOTE: Low battery voltage can cause this DTC. Make
sure the battery is fully charged and in good condition
(see page 22-88).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn the
ignition switch to ON (II) again.
4. Check for DTCs with the HDS.
Is DT C 81 indicated?
YES − Replace the TPMS control unit (see page
18-85).
−
NO The system is OK at this time. Check for loose
terminals and poor connections at the TPMS
control unit.
18-78 18-78
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DTC 83: No VSP Signal
NOTE: If DTC 85 stored at the same time as DTC 83,
troubleshoot DTC 85 first, then recheck for DTC 83.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle at 7 mph (10 km/h) or more.
4. Check the speedometer.
Does the speedometer register speed?
−
YES Go to step 5.
NO − Update the ECM/PCM if it does not have the
latest software (see page 11-231), or substitute a
known-good ECM/PCM (see page 11-7), then go to
step 1 and recheck. If the ECM/PCM was updated
and DTCs are not indicated, troubleshooting is
complete. If the ECM/PCM was substituted and
DTCs are not indicated, replace the original ECM/
PCM (see page 11-232).
5. Check the VEHICLE SPEED in the TPMS DATA LIST
with the HDS.
Is the vehicle speed indicated?
YES − The system is OK at this time.
−
NO Substitute a known-good TPMS control unit
(see page 18-85), and recheck.
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