Srs General Troubleshooting Information - Honda 2002 Accord Manual

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 ON (II), the SRS indicator will come on. If it goes off after 6 seconds, the system is
normal.
• If there is an abnormality, the system locates and defines the problem, stores this information in memory, and turns
the S R S indicator light on. The data will remain in the memory even when the ignition switch is turned off or if the
battery is disconnected.
• When you connect the Honda PGM Tester to the 16P Data Link Connector (DLC) to short the S C S terminal, and turn
the ignition switch ON (II), the S R S indicator light will indicate the diagnostic trouble code (DTC) by the number of
blinks.
• After reading and recording the DTC, proceed with the troubleshooting procedure for the code indicated.
Precautions
• Use only a digital multimeter to check the system. If it's not a Honda multimeter, make sure it's 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 ON (II), or has been turned OFF for less than 3 minutes, be careful not to bump the
S R S unit; the airbags could accidentally deploy and cause damage or injuries.
• Before you remove the SRS main harness, disconnect the driver's airbag connector and the front passenger's airbag
connector.
• Before you remove the SRS main harness or S R S floor harness, disconnect the driver's side airbag connector and
the front passenger's side airbag connector (on model with side airbags).
• Make sure the battery is sufficiently charged. If the battery is dead or low, the measured values won't be correct.
• Do not touch a tester probe to the terminals in the S R S unit or harness connectors, and do not connect the terminals
with a jumper wire. Use only the backprobe set to backprobe spring-loaded lock type connectors (see step 1 on page
23-33).
Reading the DTC
When the SRS indicator light is on, read the DTC using either of the following methods:
Honda PGM Tester " S R S " Menu Method
Connect the Honda PGM Tester (A) to the 16P DLC (B), and follow the Tester's prompts in the " S R S " menu. If the
Tester indicates no DTC, DTC 9-1, or DTC 9-2, double-check by selecting " S C S " on the display, and watching the S R S
indicator light.
A
(cont'd)
23-41