Operation CHARM: Car repair manuals for everyone.
Home >> Dodge or Ram Truck >> 2012 >> Journey AWD V6-3.6L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> B Code Charts >> B212D

B212D






B212D-IGNITION RUN ONLY INPUT CIRCUIT OPEN

Special Tools:










For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Occupant Restraint Controller module (ORC) receives power from both a fused run relay output and fused ignition switch output circuit from the Junction Block. These circuits power the ORC and the capacitors used to initiate the squib deployment circuits in the event of collision detection.

- When Monitored:
With the ignition in the Run or Start position and every 100ms throughout the ignition cycle.

- Set Condition:
If voltage on the (F945) Fused Ignition Switch Output (Run-Start) circuit drops below 6.0 volts and (F929) Fused (Run Only) circuit voltage is greater then or equal to 9 volts for 15 seconds in the bussed ignition RUN position. The code will go from active to stored if the (F945) Ignition (Run-Start) circuit voltage is equal or above 6 volts for 5 seconds.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.

1. VERIFY THAT DTC B212D-IGNITION RUN ONLY INPUT CIRCUIT OPEN IS ACTIVE IN THE ORC

NOTE: Make sure the battery is fully charged.

1. Turn the ignition on, then off, then on again, wait 15 seconds.
2. With the scan tool, read (ORC) DTCs.

Does the scan tool display active: B212D-IGNITION RUN ONLY INPUT CIRCUIT OPEN?

Yes

- Go To

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. . Restraints System Intermittent Condition Test

2. INSPECT JB FUSE F110 (10A) FOR AN OPEN
1. Turn the ignition off.
2. Remove the Run Only Relay Output Fuse F110 from the JB and inspect the fuse.

NOTE: Check connectors - Clean and repair as necessary.

Is the Run Relay fuse open?

Yes

- Go To 3

No

- Go To 6

3. CHECK (F929) FUSED RUN RELAY OUTPUT CIRCUIT FOR A SHORT TO GROUND WITH ORC CONNECTED

WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

1. Measure the resistance of the (F929) Fused Run Only Relay Output circuit between ground and the output terminal of Fuse F110 in the JB.

Is the resistance 100.0 Ohms or less?

Yes

- Go To 4

No

- Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.Replace (Run Only) Output Fuse F110.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

4. CHECK (F929) FUSED RUN RELAY OUTPUT CIRCUIT FOR A SHORT TO GROUND WITH ORC DISCONNECTED
1. Disconnect the ORC harness connectors.

NOTE: Check connectors - Clean and repair as necessary.

2. Connect the (8443-28) to the ORC harness connectors.
3. Measure the resistance of the (F929) Fused Run Relay Output circuit between ground and the output terminal side of Fuse F110 in the JB.

Is the resistance 100 Ohms or less?

Yes

- Go To 5

No

- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.

- Replace the ORC and the F110 fuse from the JB. Occupant Restraint Controller - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

5. CHECK (F929) FUSED RUN RELAY OUTPUT CIRCUIT FOR A SHORT TO GROUND WITH THE JB DISCONNECTED
1. Disconnect the JB C3 harness connector.
2. Measure the resistance of the (F929) Fused Run Relay Output circuit between ground and the JB F110 harness connector.

Is the resistance 100 Ohms or less?

Yes

- Repair the (F929) Fused Run Relay Output circuit for a short to ground. Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals. Replace the F110 fuse in the JB.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Replace and program the JB. Replace the M32 fuse. Junction Block - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

6. CHECK VOLTAGE AT THE INPUT SIDE OF F110 FUSE CONNECTOR IN JB
1. Turn the ignition on.
2. Measure the voltage of the internal JB Relay Run Output circuit between the input side of the Fuse F110 connector and ground.

Is the voltage above 6.5 volts?

Yes

- Go To 7

No

- Go To 9

7. CHECK (F929) FUSED RUN RELAY OUTPUT CIRCUIT VOLTAGE AT THE ORC





WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

1. Disconnect the ORC harness connectors.

NOTE: Check connectors - Clean and repair as necessary.

2. Connect the (8443-28) to the ORC harness connectors.
3. Reinstall Fuse F110 (10A) in the JB.

WARNING: Turn the ignition on then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

4. Measure the voltage of the (F929) Fused Run Relay Output circuit between the appropriate terminal of the (8443-28) and ground.

Is the voltage above 6.5 volts?

Yes

- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.

- WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

- Replace the ORC. Occupant Restraint Controller - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No
Go To 8

8. CHECK (F929) RUN RELAY OUTPUT CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the JB C3 harness connector.
3. Measure the resistance of the (F929) Fused Run Relay Output circuit between the JB C3 harness connector cavity 54 and the (8443-28) C2-A cavity 81.

Is the resistance 10 Ohms or less?

Yes

- Replace and program the JB. Junction Block - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Repair the (F929) Fused Run Relay Output circuit for an Open. Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

9. CHECK FUSED B+ CIRCUIT(S) AT RUN RELAY FOR AN OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Remove the Run Relay from the JB.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the Fused B+ circuits in the Run Relay connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Is the test light illuminated and bright?

Yes

- Go To 10

No

- Repair the Fused B+ circuit(s) for an open circuit or high resistance.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

10. CHECK RUN RELAY CONTROL CIRCUIT OPERATION
1. With the scan tool actuate the Run Relay control to ON.
2. Using a 12-volt test light connected to ground, check the Run Relay Control circuit in the Run Relay connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

3. With the scan tool, actuate the Run Relay control to OFF.

Did the test light illuminate as described above when the control was actuated ON?

Yes

- Go To 11

No

- Go To 12

11. CHECK RUN RELAY CONNECTOR TERMINALS IN JB
1. Turn the ignition off.
2. Inspect the connectors where the Run Relay connects to the JB.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors.

Were any problems found?

Yes

- Repair as necessary.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Replace Run Relay.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

12. CHECK RUN RELAY CONNECTOR TERMINALS IN JB
1. Turn the ignition off.
2. Inspect the connectors where the Run Relay connects to the JB.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors.
4. Perform any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

No

- Replace and program the JB. Junction Block - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

pro multis · About Operation CHARM