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Home >> Mercury >> 2009 >> Mariner 4WD L4-2.5L Hybrid >> Repair and Diagnosis >> Restraints and Safety Systems >> Air Bag Systems >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Test - Restraints Control Module (RCM) >> Pinpoint Tests AA: DTCs B0001:4A, B0002:4A, B0010:4A, B0011:4A, B0020:4A, B0021:4A, B0028:4A, B0029:4A, B0050:4A, B0052:4A, B00

Pinpoint Tests AA: DTCs B0001:4A, B0002:4A, B0010:4A, B0011:4A, B0020:4A, B0021:4A, B0028:4A, B0029:4A, B0050:4A, B0052:4A, B00




Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS)

Pinpoint Test - Restraints Control Module (RCM)

Pinpoint Test AA: DTCs B0001:4A, B0002:4A, B0010:4A, B0011:4A, B0020:4A, B0021:4A, B0028:4A, B0029:4A, B0050:4A, B0052:4A, B0090:4A, B0091:4A, B0092:4A, B0095:4A, B0096:4A, B0097:4A, B00B5:4A, B00D5:4A, B1211:4A, B1212:4A, B1213:4A, B1214:4A and U3000:4A

Refer to Wiring Diagram Set 46 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Supplemental Restraint System for schematic and connector information. Diagrams By Number

Normal Operation

The Restraints Control Module (RCM) monitors all of Supplemental Restraint System (SRS) device connections. If the RCM detects a connection or device connected that is not stored in memory, the RCM will set a DTC and send a message to the Instrument Cluster (IC) module to illuminate air bag warning indicator.

B0001:4A-B1214:4A:





U3000:4A:





This pinpoint test is intended to diagnose the following:
- Incorrect RCM for vehicle
- RCM not configured



PINPOINT TEST AA: DTCs B0001:4A, B0002:4A, B0010:4A, B0011:4A, B0020:4A, B0021:4A, B0028:4A, B0029:4A, B0050:4A, B0052:4A, B0090:4A, B0091:4A, B0092:4A, B0095:4A, B0096:4A, B0097:4A, B00B5:4A, B00D5:4A, B1211:4A, B1212:4A, B1213:4A and B1214:4A

WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy(R) and cause serious personal injury or death.

WARNING: Never probe the electrical connectors on air bag, Safety Canopy(R) or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

NOTE: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test. Inspection and Verification

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AA1 RETRIEVE RCM DTCs


- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Were any incorrect component installed DTCs retrieved on-demand during self-test?

Yes
This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test. GO to AA2.

No
This is an intermittent fault when present as a CMDTC only. The fault condition is not present at this time. GO to AA6.

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AA2 CHECK VEHICLE HISTORY


- Ignition OFF.
- Check the vehicle repair history.
- Has a new RCM or OCSM been installed during this or a prior repair?

Yes
GO to AA3.

No
GO to AA5.

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AA3 CHECK RCM AND OCSM VEHICLE IDENTIFICATION PIDs


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - RCM.
- Enter the following diagnostic mode on the scan tool: V_ID_14229 and OCS_MY. View and record PID values.
- Enter the following diagnostic mode on the scan tool: DataLogger - OCSM.
- Enter the following diagnostic mode on the scan tool: V_ID_14229 and OCS_MY. View and record PID values.
- Verify the correct vehicle application.
- Does the PID values match the vehicle application?

Yes
GO to AA4.

No
INSTALL the correct RCM or Occupant Classification Sensor (OCS) system service kit. REFER to Restraints Control Module (RCM) Service and Repair or Occupant Classification Sensor - Service Kit Occupant Classification Sensor - Service Kit. GO to AA8.

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AA4 CHECK ABS MODULE


- Ignition OFF.
- Check the part number on the ABS module against the part number listed in the master parts catalog.
- Does the part number on the ABS module match the part number listed in the master parts catalog?

Yes
GO to AA5.

No
INSTALL the correct ABS module. GO to AA8.

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AA5 CHECK RCM


- Ignition ON.
- Carry out Programmable Module Installation (PMI) for the RCM. Use as-built data when carrying out PMI. Refer to Information Bus. Programming and Relearning
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
- Was any incorrect component installed DTCs retrieved on-demand during self-test?

Yes
GO to AA6.

No
Fault corrected. GO to AA8.

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AA6 CONFIRM THE RCM FAULT


NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.

- Connect: All Previously Disconnected Component(s)/Connector(s).
- Repower the SRS. Do not prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was any incorrect component installed DTCs retrieved on-demand during self-test?

Yes
INSTALL a new RCM. REFER to Restraints Control Module (RCM) Service and Repair. GO to AA8.

No
In the process of diagnosing the fault, the fault condition has become intermittent.

CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. REPAIR any intermittent wiring, terminal or connector concerns found. GO to AA7.

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AA7 CHECK FOR AN INTERMITTENT FAULT


- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Were any incorrect component installed DTCs retrieved on-demand during self-test?

Yes
INSTALL a new RCM. REFER to Restraints Control Module (RCM) Service and Repair. GO to AA8.

No
CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. REPAIR any intermittent wiring, terminal or connector concerns found. GO to AA8.

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AA8 CHECK FOR ADDITIONAL SRS DTCs


- Ignition OFF.
- WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Reconnect all SRS components (if previously disconnected).
- If previously directed to depower the SRS, repower the SRS. Do notprove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - Restraints.
- NOTE: When selecting Restraints from the Self Test menu, DTCs will be retrieved from the RCM and OCSM.
- Are any RCM and/or OCSM DTCs retrieved?

Yes
Do not clear any DTCs until all DTCs have been resolved. GO to the DTC Charts for pinpoint test direction. [1][2]Diagnostic Trouble Code Descriptions

No
CLEAR all RCM and OCSM DTCs. PROVE OUT the SRS. Repair is complete. RETURN the vehicle to the customer.

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