( TL19E00K791000R681XFAAT00 )

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:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software and retest.

1. Clear the DTC memory.

1. Turn the ignition switch to LOCK (0), then wait for 10 seconds.

1. Turn the ignition switch to ON (II).

1. Read the DTC.

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. Remove the dashboard side cover, then disconnect the dashboard wire harness 4P connector from the front passenger's airbag on/off switch.

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

-

- If voltage is about 0 V, go to Step 10 .
- If voltage is 5 V, reconnect the front passenger's airbag on/off switch, then check the DTC. Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, replace the SRS unit.

1. Turn the ignition switch to LOCK (0).

1. Do the battery terminal disconnection procedure, then wait for 3 minutes.

1. Disconnect SRS unit connector A (39P) from the SRS unit.

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 (G504) or poor connection at G504.■