Occupant Classification Module (OCM)

B210E-BATTERY VOLTAGE HIGH







- When Monitored:
While the CAN bus ignition status received is RUN or SNA (Signal Not Available), the Occupant Classification Module (OCM) checks the (A27) Fused B(+) circuit voltage input range.

- Set Condition:
If the OCM detects battery voltage greater than or equal to 24.25 ± 0.25 volts for 10 seconds.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read OCM DTCs.

Does the scan tool display active B210E-BATTERY VOLTAGE HIGH DTC?

Yes

- Go To 2

No

- Perform the OCS INTERMITTENT TEST. OCS Intermittent Test.

2. CHECK THE BATTERY VOLTAGE TO THE OCCUPANT CLASSIFICATION MODULE
1. With the scan tool in Data Display, read OCM battery voltage.

Is the battery voltage greater than 24.0 ± 0.25 volts?

Yes

- Go To 3

No

- Replace the OCM.
- Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. Re-Zero OCM Seat Weight Sensors.

3. CHECK FOR CHARGING SYSTEM RELATED DTCs IN THE POWERTRAIN CONTROL MODULE (PCM) OR THE ENGINE CONTROL MODULE (ECM)
1. With the scan tool in ECU View, select PCM or ECM and check for any Charging System related DTCs.

Does the scan tool display any Charging System related DTCs?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure for gas engine applications.

No

- Replace the OCM.
- Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. Re-Zero OCM Seat Weight Sensors.