For a complete wiring diagram Refer to Section 8W.When Monitored:While the CAN bus ignition status is in IGN_RUN.Set Condition:If the OCM detects any two sensors voltages below 20 mV for 10 minutes while any other sensor is greater than 40 mV. Note: 1 A/D count is equal to 5 mV.A shorted supply circuit will cause a “NO RESPONSE FROM OCM” condition.Possible CausesOCS SENSOR CIRCUITS SHORTED TOGETHEROCCUPANT CLASSIFICATION MODULE (OCM)1. VERIFY THAT B1BBB-PASSENGER SEAT WEIGHT SENSOR INPUTS SHORTED TOGETHER DTC IS ACTIVEWith the scan tool, read OCM DTC.Does the scan tool display active: B1BBB-PASSENGER SEAT WEIGHT SENSOR INPUTS SHORTED TOGETHER ?YesTo avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Replace the OCM in accordance with the Service Information.Perform the B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED diagnostic test.NoGo To 22. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORSTo avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Using the wiring diagram/schematic as a guide, inspect the Passenger Seat Harness wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.Are any of these conditions present?YesDo not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.Replace the Passenger Seat Harness in accordance with the Service Information.Perform *OCM SYSTEM VERIFICATION TEST. NoGo To 33. TEST FOR INTERMITTENT CONDITIONWith the scan tool, record and erase all DTC from the OCM.If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.The following additional checks may assist you in identifying a possible intermittent problem.Reconnect any disconnected components and harness connector.To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.With the scan tool monitor active codes as you work through the following steps.To avoid serious or fatal injury, maintain a safe distance from all airbags while performing the following steps.Wiggle the wiring harness and connectors of the related airbag circuit or component.If only stored codes return continue the test until the problem area has been isolated.In the previous steps you have attempted to recreate the conditions responsible for setting active DTC in question.Are any ACTIVE DTC present?YesSelect the appropriate symptom from Symptom List.NoNo problem found at this time. Perform the Occupant Classification Module System Verification Test in this Section. Erase all codes before returning vehicle to customer.