Is the fuse OK?
YES -
Go to step 6.
NO -
Replace the fuse, then turn the ignition switch to ON (II). If the fuse blows again, check for short to ground in the dashboard wire harness or
auxiliary under-dash fuse holder 2 No. 2 (7.5 A) fuse circuit; replace the dashboard wire harness. If the problem is still present, replace the auxiliary
under-dash fuse holder 2.?
6. Turn the ignition switch to LOCK (0).
7. Disconnect the negative cable from the battery, then wait at least 3 minutes.
8. Disconnect SRS unit connector A (39P) from the SRS unit.
9. Reconnect the negative cable to the battery.
10. Turn the ignition switch to ON (II).
11. Measure the voltage between body ground and SRS unit connector A (39P) terminal No. 26. There should be battery voltage.
Is there battery voltage?
YES -
Faulty SRS unit or poor connection at SRS unit connector A (39P) and the SRS unit; check the connection. If the connection is OK, replace the
SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control Module/Service and Repair/SRS Unit
Replacement.?
NO -
Open in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.?
A2-1x
SRS DTC Troubleshooting: A2-1x
DTC A2-1x ("x" can be 0 thru 9 or A thru F):
Faulty Power Supply (VB line)
NOTE:
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and
Disarming/Service and Repair, General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes, and Battery Terminal Disconnection and Reconnection See: Starting and
Charging/Battery/Service and Repair/Procedures.
- 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 See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,
and retest.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS.
