Pinpoint Test T: B0061:11, B0061:12, B0061:13, B0061:1C, And B0061:49
- A1 RETRIEVE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
-
WARNING: Before beginning any service procedure in this service information, refer to Safety Warnings in GENERAL INFORMATION . Failure to follow this instruction may result in serious personal injury.
REFER to: SAFETY BELT AND SUPPLEMENTAL RESTRAINT SYSTEM (SRS) HEALTH AND SAFETY PRECAUTIONS .
- Ignition ON.
- Using a diagnostic scan tool, perform OCSM self-test.
Was DTC B0061:11, B0061:12, B0061:13, B0061:1C or B0061:49 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 the self-test. For DTC
B0061:11, GO to A2 For DTC
B0061:12, GO to A5 For DTC
B0061:13, GO to A7 For DTC
B0061:1C, GO to A9 For DTC
B0061:49, INSTALL a new OCS
sensor.
GO to A13
- No : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to A12
-
- A2 CHECK THE BELT TENSION SENSOR (BTS) 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.NOTE: This pinpoint test step attempts to change the fault reported by the OCSM by inducing a different fault condition. If the fault reported changes, this indicates the OCSM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Disconnect Passenger Safety Belt Buckle C3238 .
- Using a diagnostic scan tool, perform OCSM self-test.
- DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the Belt Tension Sensor (BTS) disconnected, an open circuit fault is normally retrieved. Because the Belt Tension Sensor (BTS) shares a connector with the passenger safety belt buckle switch, a passenger safety belt buckle switch circuit fault will also be present in the RCM .
Was DTC B0061:11 retrieved on-demand during self-test?
- Yes : GO to A3
- No
: INSTALL a new passenger safety belt buckle.
REFER to: FRONT SAFETY BELT BUCKLE - VEHICLES WITH: FIRST AND SECOND ROW SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
GO to A13
- A3 CHECK THE BELT TENSION SENSOR (BTS) CIRCUITS FOR A SHORT TO GROUND OR A SHORT TOGETHER 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.
- Ignition OFF.
- Disconnect OCSM C3159 .
- Measure:
Positive Lead Measurement/Action Negative Lead C3238-1 Ground - Measure:
Positive Lead Measurement/Action Negative Lead C3238-1 C3238-2
Are the resistances greater than 10, 000 ohms?
- Yes : GO to A4
- No
: REPAIR the circuit(s).
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- A4 CHECK THE BELT TENSION SENSOR (BTS) VREF CIRCUIT FOR AN OPEN
Is the resistance less than 0.5 ohm?
- Yes : GO to A11
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- A5 CHECK THE BELT TENSION SENSOR (BTS) SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS
.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect Passenger Seat Side Airbag (Inline) C3007B .
- Disconnect Passenger Safety Belt Buckle C3238 .
- Disconnect OCSM C3159 .
- Repower the SRS
. Do not prove out the SRS
at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Measure:
Positive Lead Measurement/Action Negative Lead C3159-6 Ground
Is any voltage present?
- Yes
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- No : GO to A6
- A6 CHECK THE BELT TENSION SENSOR (BTS) GROUND CIRCUIT FOR AN OPEN
Is the resistance less than 3 ohms?
- Yes : GO to A11
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- A7 CHECK THE BELT TENSION SENSOR (BTS) NOTE: This pinpoint test step will attempt to change the fault reported by the OCSM by inducing a different fault condition. If the fault reported changes, this indicates the OCSM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Depower the SRS
.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect Passenger Seat Side Airbag (Inline) C3007B .
- Disconnect Passenger Safety Belt Buckle C3238 .
- Connect a fused jumper wire:
Positive Lead Measurement/Action Negative Lead C3238-1 C3238-3 - Repower the SRS
. Do not prove out the SRS
at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Using a diagnostic scan tool, perform OCSM self-test.
- DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the Belt Tension Sensor (BTS) circuits shorted together, a short to ground fault is normally retrieved. Because the Belt Tension Sensor (BTS) shares a connector with the passenger safety belt buckle switch, a passenger safety belt buckle switch circuit fault will also be present in the RCM .
Did the on-demand DTC change from B0061:13 to B0061:11?
- Yes
: INSTALL a new passenger safety belt buckle.
REFER to: FRONT SAFETY BELT BUCKLE - VEHICLES WITH: FIRST AND SECOND ROW SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
GO to A13
- No : GO to A8
- A8 CHECK THE BELT TENSION SENSOR (BTS) SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect OCSM C3159 .
- Measure:
Positive Lead Measurement/Action Negative Lead C3238-1 C3159-6
Is the resistance less than 0.5 ohm?
- Yes : GO to A11
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- A9 CHECK THE BELT TENSION SENSOR (BTS) SIGNAL CIRCUIT FOR A SHORT TO THE BELT TENSION SENSOR (BTS) VREF CIRCUIT 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.
- Ignition OFF.
- Disconnect OCSM C3159 .
- Disconnect Passenger Safety Belt Buckle C3238 .
- Measure:
Positive Lead Measurement/Action Negative Lead C3238-2 C3238-1
Is the resistance greater than 10, 000 ohms?
- Yes : GO to A10
- No
: REPAIR the circuits.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
GO to A13
- A10 CHECK BELT TENSION SENSOR (BTS) VOLTAGE OUTPUT
- Ignition OFF.
- Depower the SRS
.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Connect OCSM C3159 .
- Disconnect Passenger Seat Side Airbag (Inline) C3007B .
- Connect fused jumper wires:
Positive Lead Measurement/Action Negative Lead
C3238, pin 2, harness side
C3238, pin 2, component side
C3238, pin 3, harness side
C3238, pin 3, component side - Repower the SRS
. Do not prove out the SRS
at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Measure:
Positive Lead Measurement/Action Negative Lead
C3238, pin 1, component sideGround
Does the voltage vary from approximately 0.95 volt with no tension applied to the sensor to approximately 3.8 volts with full tension applied to the sensor?
- Yes : REMOVE the fused jumper wires and GO to A11
- No
: REMOVE the fused jumper wires and INSTALL a new passenger safety belt buckle.
REFER to: FRONT SAFETY BELT BUCKLE - VEHICLES WITH: FIRST AND SECOND ROW SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
GO to A13
- A11 CONFIRM THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) FAULT 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.NOTE: Make sure all OCS system components, SRS electrical connectors and the RCM electrical connectors are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) will be recorded.
- Ignition OFF.
- Prior to reconnecting any previously disconnected SRS
component:
- inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- repair any concerns found.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
- Connect OCSM C3159 (if previously disconnected).
- Connect Passenger Safety Belt Buckle C3238 (if previously disconnected).
- If previously directed to disconnect Passenger Seat Side Airbag (Inline) C3007B
, depower the SRS
.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Connect Passenger Seat Side Airbag (Inline) C3007B
.
- Tighten to 1 Nm (9 lb-in).
- If previously directed to depower the SRS
, repower the SRS
. Do not prove out the SRS
at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Using a diagnostic scan tool, perform OCSM self-test.
Was the original DTC retrieved on-demand during self-test?
- Yes
: CHECK OASIS
for any applicable Technical Service Bulletins (TSBs). If a TSB
exists for this concern, DISCONTINUE this test and FOLLOW TSB
instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new OCS
sensor.
GO to A13
- No : In the process of diagnosing the fault, the fault condition has become intermittent. 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. GO to A12
- A12 CHECK FOR AN INTERMITTENT FAULT 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.
- Ignition OFF.
- Disconnect Passenger Safety Belt Buckle C3238
.
- inspect connector(s) (including any inline connectors) for loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- repair any concerns found.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
- Connect Passenger Safety Belt Buckle C3238 .
- Ignition ON.
- Using a diagnostic scan tool, perform OCSM self-test.
Was DTC B0061:11, B0061:12, B0061:13, B0061:1A or B0061:1C retrieved on-demand during self-test?
- Yes : The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test. For DTC B0061:11 or B0061:1A, GO to A2 For DTC B0061:12, GO to A5 For DTC B0061:13, GO to A7 For DTC B0061:1C, GO to A9
- 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 system in the same wire harness. Do not install any new SRS components at this time. Only install SRS components when directed to do so in the pinpoint test. REPAIR any intermittent concerns found. GO to A13
- A13 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS) 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.
- Ignition OFF.
- If previously directed to disconnect Passenger Seat Side Airbag (Inline) C3007B
, depower the SRS
.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Reconnect all SRS components (if previously disconnected).
- If previously directed to depower the SRS
, repower the SRS
. Do not prove out the SRS
at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
-
NOTE: When selecting Restraints from the Self Test menu, Diagnostic Trouble Codes (DTCs) are retrieved from the RCM and OCSM .
Using a diagnostic scan tool, perform Restraints self-test.
Are any RCM and/or OCSM Diagnostic Trouble Codes (DTCs) retrieved?
- Yes : Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. Refer to DTC CHART: RCM or Refer to DTC CHART: OCSM for pinpoint test direction.
- No : CLEAR all RCM and OCSM Diagnostic Trouble Codes (DTCs). PROVE OUT the SRS . The repair is complete. RETURN the vehicle to the customer.