PINPOINT TEST AJ: DTCs B00C2:12, B00C2:13 AND B00C2:1A
- AJ1 RETRIEVE OCSM DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM .
Was DTC B00C2:12, B00C2:13 or B00C2:1A 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 AJ2 .
- No : This is an intermittent fault when present as a CMDTC only. GO to AJ12.
- AJ2 CHECK THE SEAT WIRING AND CONNECTORS
- 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.
- Carry out a thorough inspection of the OCS wiring, terminals and connectors, weight sensor bolt connector and connection, wiring harness routing and the related seat wiring harness and body wiring harness terminals and connectors.
Were any problems noted?
- Yes
: DEPOWER the SRS
. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING
.
REPAIR the seat connectors and wiring as needed.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to AJ13.
- No
: For DTC B00C2:12, GO to AJ3
.
For DTC B00C2:13, GO to AJ5.
For DTC B00C2:1A, GO to AJ8.
- Ignition OFF.
- AJ3 CHECK THE OCS WEIGHT SENSOR BOLT "C" 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 Air Bag Module C337 .
- Disconnect: OCS Weight Sensor Bolt "C" C3330 .
- 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 the voltage
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3330-3 VR226 (YE/GY) - Ground
Is any voltage present?
- Yes
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to AJ13.
- No : GO to AJ4 .
- AJ4 CHECK THE OCS WEIGHT SENSOR BOLT "C" RETURN CIRCUIT FOR AN OPEN
- 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.
- Measure the resistance
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3330-2 RR153 (GY/BU) - Ground
Is the resistance less than 3 ohms?
- Yes : GO to AJ11.
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to AJ13.
- Ignition OFF.
- AJ5 CHECK THE OCS WEIGHT SENSOR BOLT "C" FOR A FAULT STATUS CHANGE (OPEN INDICATED) 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.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag Module C337 .
- Disconnect: OCS Weight Sensor Bolt "C" C3330 .
- Connect a fused jumper wire
between:
Lead 1 Lead 2 Pin Circuit Pin Circuit C3330-2 RR153 (GY/BU) C3330-3 VR226 (YE/GY) - Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM .
- DIAGNOSTIC TIP: When viewing DTCs with the OCS weight sensor bolt "C" circuits shorted together, a low resistance circuit fault is normally retrieved.
Did the on-demand DTC change from B00C2:13 to B00C2:1A?
- Yes : REMOVE the fused jumper wire and INSTALL a new seat track assembly with OCS weight sensor bolts. REFER to SEAT SYSTEM - SEATS . GO to AJ13.
- No : REMOVE the fused jumper wire and GO to AJ6 .
- AJ6 CHECK THE OCS WEIGHT SENSOR BOLT "C" SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: OCSM C3159 .
- Measure the resistance
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3159-7 VR226 (YE/GY) C3330-3 VR226 (YE/GY)
Is the resistance less than 0.5 ohm?
- Yes : GO to AJ7 .
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to AJ13.
- AJ7 CHECK THE OCS WEIGHT SENSOR BOLT "C" VREF CIRCUIT FOR AN OPEN
- Measure the resistance
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3159-8 CR153 (GN/WH) C3330-1 CR153 (GN/WH)
Is the resistance less than 3 ohms?
- Yes : GO to AJ11.
- No
: REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to AJ13.
- Measure the resistance
between:
- AJ8 CHECK THE OCS WEIGHT SENSOR BOLT "C" FOR A FAULT STATUS CHANGE (RESISTANCE BELOW THRESHOLD INDICATED) 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.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.
- Disconnect: OCS Weight Sensor Bolt "C" C3330 .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM .
- DIAGNOSTIC TIP: When viewing DTCs with the OCS weight sensor bolt "C" disconnected, an open sensor circuit fault is normally retrieved.
Did the on-demand DTC change from B00C2:1A to B00C2:13?
- Yes : INSTALL a new seat track assembly with OCS weight sensor bolts. REFER to SEAT SYSTEM - SEATS . GO to AJ13.
- No : GO to AJ9 .
- Ignition OFF.
- AJ9 CHECK FOR A SHORT BETWEEN THE OCS WEIGHT SENSOR BOLT "C" CIRCUITS AND GROUND
- 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.
- Disconnect: OCSM C3159 .
- Measure the resistance
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3330-3 VR226 (YE/GY) - Ground C3330-3 VR226 (YE/GY) C3330-2 RR153 (GY/BU)
Are the resistances greater than 10, 000 ohms?
- Yes : GO to AJ10 .
- No
: REPAIR the affected circuits.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to AJ13.
- Ignition OFF.
- AJ10 CHECK FOR A SHORT BETWEEN THE OCS WEIGHT SENSOR BOLT "C" SIGNAL CIRCUITS AND OTHER OCS SENSOR SIGNAL CIRCUITS
- Disconnect: OCS Weight Sensor Bolt "D" C3331 .
- Measure the resistance
between:
Positive Lead Negative Lead Pin Circuit Pin Circuit C3330-3 VR226 (YE/GY) C3331-3 VR227 (VT/GN)
Is the resistance greater than 10, 000 ohms?
- Yes : GO to AJ11 .
- No
: REPAIR the affected circuits.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to AJ13.
- AJ11 CONFIRM THE OCSM FAULT NOTE: Make sure all restraint system sensor electrical connectors, OCS components, and the OCSM electrical connector are all connected before carrying out the self-test. If not, DTCs will be recorded.
- 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.
- Prior to reconnecting any previously disconnected SRS
component:
- inspect connector(s) (including any in-line 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 for schematic and connector information.
- Connect: OCSM C3159 (if previously disconnected).
- Connect: OCS Weight Sensor Bolt "C" C3330 .
- 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.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM .
Was the original DTC retrieved on-demand during self-test?
- Yes : CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, discontinue this test and follow TSB instructions. If no TSBs address this concern, INSTALL a new OCSM . REFER to OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - MANUAL SEAT TRACK or OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - POWER SEAT TRACK . GO to AJ13.
- No : In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . GO to AJ13.
- Ignition OFF.
- AJ12 CHECK FOR AN INTERMITTENT FAULT
- 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.
- Disconnect: OCS
Weight Sensor Bolt "C" C3330
.
- inspect connector(s) (including any in-line connectors) for corrosion, 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 for schematic and connector information.
- Connect: All previously disconnected component(s)/connector(s).
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - OCSM .
Was DTC B00C2:12, B00C2:13 or B00C2:1A 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.
For DTC B00C2:12, GO to AJ3.
For DTC B00C2:13, GO to AJ5.
For DTC B00C2:1A, GO to AJ8.
- No
: The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test
.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to AJ13 .
- Ignition OFF.
- AJ13 CHECK FOR ADDITIONAL SRS 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.
- 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.
- Enter the following diagnostic mode on the scan tool: Self Test - Restraints.NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM .
Are any on-demand RCM and/or OCSM DTCs retrieved?
- Yes : Do not clear any DTCs until all DTCs have been resolved. REFER to DTC CHARTS for pinpoint test direction.
- No : CLEAR all RCM and OCSM CMDTCs . PROVE OUT the SRS . The repair is complete. RETURN the vehicle to the customer.