Ford Fiesta Quiz
Body and Paint

Pinpoint Test - Diagnostic Trouble Code: JJ. Diagnosis and Testing

In this manual: Body and Paint
Service Information — 27Suspension — 48Transmission — 9Brake System — 52Steering — 21Engine — 140Manual Transmission, Clutch, Transfer Case and Power Transfer Unit — 48Exhaust System — 6Fuel System — 21Climate Control System — 58Instrumentation and Warning Systems — 26Battery and Charging System — 20Infotainment Systems — 41Lighting — 29Power Distribution — 11Electronic Function Group — 30Body and Paint — 275Frame and Mounting — 3
~3min read

U0151:00

Normal Operation and Fault Symptoms

The OCSM uses information contained in messages from the RCM sent over the HS-CAN bus.


DTC Fault Trigger Conditions


Trouble Code Description Fault Trigger Conditions
U0151:00 Lost communication with restraints control module: no subtype information This DTC sets if the OCSM does not receive an expected message from the RCM.

Possible Causes

  • Network Traffic
  • OCSM
  • RCM

PINPOINT TEST A: U0151:00
NOTE: Most concerns are related to connector and/or wiring issues. Perform a thorough inspection and check before proceeding to the Pinpoint Test.
NOTE: Only disconnect or reconnect SRS components when instructed to do so in the Pinpoint Test step. Failure to follow this instruction may result in an incorrect SRS diagnosis.
NOTE: Always verify the correct SRS component is installed. Parts released for other vehicles may be incompatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to confirm the correct component is installed. If an incorrect SRS component is installed, diagnostic trouble codes (DTCs) may be set.
A1 CHECK THE COMMUNICATION NETWORK
  • WARNING: Before starting any service procedure in this section, refer to the Safety Warnings in Section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.
    REFER TO: Pyrotechnic Device Handling Precautions (100-00 General Information, Description and Operation).
  • The ignition is on.
  • Using the diagnostic scan tool, perform the network test.

Does the RCM pass the network test?
Yes GO to A2
No To diagnose a loss of communication with the RCM,
REFER TO: Communication Network (418-00 Module Communications Network).
A2 CHECK THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using the diagnostic scan tool, perform the OCSM self-test.
  • Using the scan tool, clear the OCSM diagnostic trouble codes (DTCs).
  • Wait 10 seconds.
  • Using the diagnostic scan tool, perform the OCSM self-test.

Is DTC U0151:00 retrieved again?
Yes GO to A3
No The system is currently operating correctly. The DTC may have been set due to high network traffic or an intermittent fault.
A3 RETRIEVE THE STORED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINT CONTROL MODULE) SELF-TEST
  • Using the diagnostic scanner, perform the RCM self-test.

Is DTC U3003:16 or U3003:17 recorded?
Yes
REFER TO: Pinpoint Test - DTC: FF (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to A4
A4 RETRIEVE THE STORED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE OCSM (OCCUPANT CLASSIFICATION SENSING MODULE) SELF-TEST
  • Using the diagnostic scan tool, perform the OCSM self-test.
  • Check the stored diagnostic trouble codes (DTCs) from the OCSM self-test.

Is DTC U3003:16 or U3003:17 recorded?
Yes
REFER TO: Pinpoint Test - DTC: FF (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to A5
A5 CHECK DTC U0151:00 SET IN MODULES OTHER THAN THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE)
  • The ignition is on.
  • Using the diagnostic scan tool, perform a self-test of all modules.

Is DTC U0151:00 set in the ABS module or in the APIM (if equipped)?
Yes CHECK OASIS for any applicable technical service bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSBs apply to this concern, INSTALL a new RCM.
REFER TO: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
No CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSB applies to this concern, INSTALL a new OCS sensor.
REFER TO: Occupant Classification Sensor (OCS) (501-20B Supplemental Restraint System, Removal and Installation).

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