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SRS DTC Troubleshooting: 68-1x

DTC 68-1x (''x'' can be 0 thru 9 or A thru F):
Open in the Front Passenger's Airbag ON/OFF Switch
NOTE:
  1. Turn the ignition switch to LOCK (0), then wait for 10 seconds.
  1. Turn the ignition switch to ON (II).
Is DTC 68-1x indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.■
  1. Turn the ignition switch to LOCK (0).
  1. Measure the resistance between the No. 1 and No. 4 terminals of front passenger's airbag on/off switch 4P connector according to the table.
    Position
    Resistance
    ON
    3.11−3.88 kΩ
    OFF
    0.68−0.83 kΩ

Is the resistance as specified?
YES -
Go to Step 8 .
NO -
Faulty front passenger's airbag on/off switch or poor connection at front passenger's airbag on/off switch 4P connector and the front passenger's airbag on/off switch. Check the connection between the connector and the front passenger's airbag on/off switch. If the connection is OK, replace the front passenger's airbag on/off switch.

  1. Install a jumper wire between the No. 1 and the No. 4 terminals of dashboard wire harness 4P connector.

  1. Measure the voltage between the dashboard wire harness 4P connector No. 1 and No. 4 terminals.
Is there battery voltage?
YES -
Short in the dashboard wire harness; replace the dashboard wire harness.■
NO -
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the negative cable from the battery, then wait at least 3 minutes.

  1. Check for continuity between the No. 1 terminal of the dashboard wire harness 4P connector and the No. 21 terminal of the SRS unit connector A (39P).
Is there continuity?
YES -
Go to Step 14 .
NO -
Open in the dashboard wire harness; replace the dashboard wire harness.■

  1. Check for continuity between the No. 4 terminal of the dashboard wire harness 4P connector and body ground.
Is there continuity?
YES -
Faulty SRS unit or poor connection at SRS unit connector A (39P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit.
NO -
Open between the dashboard wire harness 4P connector and body ground (G502) or poor connection at G502.■