Honda Accord 2008 Manual page 2758

07/11/02 09:43:54 61TA0000_240_0035
General Troubleshooting Information
DTC (Diagnostic Trouble Codes)
The self-diagnostic function of the SRS system allows it
to locate the causes of system problems and then store
this information in memory. For easier troubleshooting,
this data can be retrieved via a data link circuit.
• When you turn the ignition switch to ON (II), the SRS
indicator should come on. If it goes off after 6
seconds, the system is normal, and is not currently
detecting any abnormality.
• If there is an abnormality, the system locates and
defines the problem, stores this information in
memory, and turns the SRS indicator on. The data
remains in the memory even when the ignition switch
is turned to LOCK (0) or if the battery is disconnected.
• The data is stored in memory as a diagnostic trouble
code (DTC).
• DTCs are either latching or resetting depending on
the malfunction. With resetting DTCs, the SRS
indicator goes off the next time the ignition switch is
turned to ON (II) and the system is normal, but the
DTC is still stored. With latching DTCs, the SRS
indicator does not turn OFF until the malfunction is
repaired and the DTC is cleared.
• When you connect the HDS to the 16P data link
connector (DLC), you can retrieve a more detailed
DTC in the Honda Systems ''SRS'' menu.
NOTE: Only read DTCs from the SRS menu, not from
ODS or SWS menus. SWS (ODS unit) DTCs are sub
codes of SRS unit DTCs. Only troubleshoot the
corresponding SRS DTCs.
• After reading and recording the DTC, proceed with
the troubleshooting procedure for that code.
Precautions
• Use only a digital multimeter to check the system.
Make sure its output is 10 mA (0.01 A) or less when
switched to the smallest value in the ohmmeter range.
A tester with a higher output could damage the
airbag circuit or cause accidental airbag deployment
and possible injury.
• Whenever the ignition switch is in ON (II), or has been
turned to LOCK (0) for less than 3 minutes, be careful
not to bump the SRS unit; the airbags could
accidentally deploy and cause damage or injuries.
• Before you remove the dashboard wire harness or
SRS floor wire harness, disconnect the driver's airbag
connector, the front passenger's airbag connector,
both side airbag connectors, both side curtain airbag
connectors, and both seat belt tensioner connectors.
• Make sure the battery is fully charged. If the battery is
dead or low, measuring values may not be correct.
• Do not touch a tester probe to the terminals in the
SRS unit or harness connectors, and do not connect
the SRS unit terminals or the sensor terminals with a
jumper wire. Use only the backprobe set and the
multimeter. Backprobe spring-loaded lock type
connectors correctly.
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