Dodge Ram Truck 1500-2500-3500. Manual — part 510

LEFT CURTAIN SQUIB 1 CIRCUIT OPEN

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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LEFT CURTAIN SQUIB 1 CIRCUIT OPEN (CONTINUED)

For the Air Bag System circuit diagram (Refer to 8 - ELECTRICAL/RESTRAINTS - SCHEMATICS AND DIA-
GRAMS).

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on, the Occupant Restraint Controller (ORC) monitors the resistance of the Left Curtain Squib
1 circuits.

•

Set Condition:
The ORC has detected an open or high resistance on the Left Curtain Squib 1 circuits.

Possible Causes

(R3) LEFT CURTAIN SQUIB 1 LINE 1 CIRCUIT OPEN

(R1) LEFT CURTAIN SQUIB 1 LINE 2 CIRCUIT OPEN

LEFT SIDE CURTAIN AIRBAG

ORC

Diagnostic Test

1.

DETERMINE ACTIVE OR STORED DTC

NOTE: Ensure the battery is fully charged.

NOTE: The scan tool, SRS Airbag Load Tool MRL 8443, and DVOM are required to perform the following
test.

NOTE: When reconnecting airbag system components the Ignition must be turned off and the Battery must
be disconnected.
Select Active or Stored DTC.

Is the DTC active or stored?

ORC - ACTIVE DTC

Go To 2

ORC - STORED DTC

Go To 6

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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LEFT CURTAIN SQUIB 1 CIRCUIT OPEN (CONTINUED)

2.

CHECK FOR OPEN SQUIB CIRCUITS IN LEFT SIDE CURTAIN AIRBAG

WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the Left Side Curtain Airbag connector.

WARNING: To avoid personal injury or death, do not place an
intact undeployed curtain airbag face down on a hard surface, the
airbag will propel into the air if accidentally deployed.

NOTE: Check connectors - Clean and repair as necessary.
Connect the 8443 Load Tool and appropriate Jumper to the Left Side
Curtain Airbag connector.

WARNING: To avoid personal injury or death, turn the ignition on,
then reconnect the battery.
With the scan tool, read the active ORC DTC’s.

Does the scan tool display: LEFT CURTAIN SQUIB 1 CIRCUIT
OPEN?

Yes

>> Go To 3

No

>> Replace the Left Side Curtain Airbag in accordance with

the Service Information.

Perform ORC VERIFICATION TEST - VER 1

3.

CHECK (R3) LEFT CURTAIN SQUIB 1 LINE 1 CIRCUIT FOR
AN OPEN

WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the 8443 Load Tool and Jumper from the Left Side Curtain
Airbag connector.

Disconnect the ORC connectors.

NOTE: Check connectors - Clean and repair as necessary.
Connect the 8443 Load Tool ORC Adaptor to the ORC connector.

Measure the resistance of the (R3) Left Curtain Squib 1 Line 1 circuit
between the Left Side Curtain Airbag connector and the Load Tool
ORC Adaptor.

Is the resistance below 1.0 ohm?

Yes

>> Go To 4

No

>> Repair the (R3) Left Curtain Squib 1 Line 1 circuit for an

open. Then, Go To 4

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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LEFT CURTAIN SQUIB 1 CIRCUIT OPEN (CONTINUED)

4.

CHECK (R1) LEFT CURTAIN SQUIB 1 LINE 2 CIRCUIT FOR AN OPEN

Measure the resistance of the (R1) Left Curtain Squib 1 Line 2 circuit
between the Left Side Curtain Airbag connector and the Load Tool
ORC Adaptor.

Is the resistance below 1.0 ohm?

Yes

>> Go To 5

No

>> Repair the (R1) Left Curtain Squib 1 Line 2 circuit for an

open.

Perform ORC VERIFICATION TEST - VER 1

5.

REPLACE THE ORC

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 and personal injury or death.

NOTE: When reconnecting airbag system components the Ignition must be turned off and the Battery must
be disconnected.

Repair

Replace the ORC in accordance with the Service Information.

Perform ORC VERIFICATION TEST - VER 1

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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