Diagnostic Strategies
D - DIAGNOSTICS PROCEDURE4D1: CHECK TROUBLE CODE INDICATES.
1. Perform on-board diagnostic.
2. Check trouble code indicates.
CHECK: Are trouble codes 4, 12, 13, 22, 34, 41, 42 or 43 indicated?
YES: Go to step 4D2.
NO: Perform diagnostics and repair according to indicated trouble code. Then go to step 4D10.
4D2: CHECK TROUBLE CODE INDICATES.
Check trouble code indicates.
CHECK: Are trouble codes 4, 22, 34, 42 indicated?
YES: Go to step 4D3.
NO: Go to step 4D7.
4D3: CHECK TROUBLE CODE INDICATES.
Check trouble code indicates.
CHECK: Are trouble codes 12, 13, 41, 43 indicated?
YES: Go to step 4D4.
NO: Go to step 4D8.
4D4: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Turn ignition switch to OFF. Disconnect battery ground cable, and wait 20 seconds.
2. Disconnect passenger's airbag module connector (AB9) to (AB10).
3. Connect test harness F connector (1F) to (AB9).
4. Connect airbag resistor to test harness F connector (3F).
5. Remove lower cover panel and connect test harness F connector (1F) to (AB8) with airbag resistor attached to test harness F connector (3F).
6. Connect battery ground cable and turn ignition switch to ON.
7. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: o to step 4D5.
NO: Perform diagnostics and repair according to indicated trouble code. Go to step 4D10.
4D5: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Turn ignition switch to "OFF". Disconnect battery ground cable, and wait 20 seconds.
2. Connect passenger's airbag module connector (AB9) to (AB10).
3. Connect battery ground cable and turn ignition switch to ON.
4. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Go to step 4D6.
NO: Replace with a new passenger's airbag module. Then go to step 4D5.
4D6: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Turn ignition switch to OFF. Disconnect battery ground cable, and wait 20 seconds.
2. Connect connector (AB8) to (AB3).
3. Remove driver's airbag module and connect test harness F connector (1F) to (AB7).
4. Connect airbag resistor to test harness F connector (3F).
5. Connect battery ground cable and turn ignition switch to ON.
6. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Replace with a new driver's airbag module. Go to step 4D10.
NO: Replace with a new combination switch and install driver's airbag module. Then go to step 4D9.
4D7: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Turn ignition switch to OFF. Disconnect battery ground cable, and wait 20 seconds.
2. Remove lower cover panel and connect test harness F connector (1F) to (AB8) with airbag resistor attached to test harness F connector (3F).
3. Connect battery ground cable and turn ignition switch to ON.
4. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Go to step 4D6.
NO: Perform diagnostics and repair according to indicated trouble code. Then Go to step 4D10.
4D8: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Turn ignition switch to OFF. Disconnect battery ground cable, and wait 20 seconds.
2. Disconnect passenger's airbag module connector (AB9) to (AB10).
3. Connect test harness F connector (1F) to (AB9).
4. Connect airbag resistor to test harness F connector (3F).
5. Connect battery ground cable and turn ignition switch to ON.
6. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Replace with a new passenger's airbag module. Then Go to step 4D10.
NO: Perform diagnostics and repair according to indicated trouble code. Then Go to step 4D10.
4D9: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Connect battery ground cable and turn ignition switch to ON.
2. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Perform clear memory.
NO: Replace with a new driver's airbag module. Then Go to step 4D10.
4D10: CHECK AIRBAG WARNING LIGHT ILLUMINATES.
1. Connect battery ground cable and turn ignition switch to ON.
2. Check airbag warning light illuminates.
NOTE: In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code procedures.
CHECK: Does airbag warning light go off after about 7 seconds and remain off for more than 30 seconds?
YES: Perform clear memory.
NO: Then Go to step 4D1.