Occupant Classification Module (OCM)

B2102-IGNITION RUN/START INPUT CIRCUIT HIGH







- When Monitored:
While the CAN bus ignition is Run or signal not available Signal Not Available (SNA) and the IOD status is "IN". The Occupant Classification Module (OCM ) checks the Fused B(+) circuit voltage input range.

- Set Condition:
If the module detects that the ignition voltage is greater than 24.25 volts ±0.25 volts for 10 seconds.





1. VERIFY THAT DTC B2102-IGNITION RUN/START INPUT CIRCUIT HIGH IS ACTIVE

NOTE: Ensure the battery is fully charged.

1. Turn the ignition on.
2. With the scan tool, read Occupant Classification Module (OCM) DTCs.

Does the scan tool display active: B2102-IGNITION RUN/START INPUT CIRCUIT HIGH?

Yes

- Go To 2

No

- Go To 3

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

Does the scan tool display any Charging System related DTCs?

Yes

- Diagnose and repair the DTCs. Testing and Inspection.

No

- Replace the OCM.
- Perform the OCM SYSTEM VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test.

3. TEST FOR INTERMITTENT CONDITION
1. With the scan tool, record and erase all DTCs from all Airbag modules.
2. If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

Does the scan tool display any ACTIVE DTCs?

Yes

- Select appropriate diagnostic procedure. Testing and Inspection.

No

- No problem found. Erase all codes before returning vehicle to customer.