Re-Zero OCM Seat Weight Sensors

RE-ZERO OCM SEAT WEIGHT SENSORS

1. VERIFY ACTIVE DTC

NOTE: Make sure the battery is fully charged.

NOTE: The OCS Seat Weights 9077 and Strain Gage Alignment Tool 9698A special tools are required to perform this test.

1. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery.

WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.

NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. OCS Verification Test

2. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows.
3. With the scan tool, read OCM DTCs.

Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs?

Yes

- Go To 2

No

- Perform the OCS VERIFICATION TEST. OCS Verification Test.

2. PERFORM THE OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST

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.

CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers.

1. Make sure all Seat Weight Sensor mounting screws are tightened to specification.[1][2]Restraints and Safety Systems.

WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.

NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion OCS Verification Test

2. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows.
3. With the scan tool, read OCM DTCs.

Does the scan tool display any active DTCs?

Yes

- Perform the appropriate diagnostic procedure. Testing and Inspection.

No

- Perform the OCS VERIFICATION TEST. OCS Verification Test.