Occupant Classification Module (Ocm) - Electrical Diagnostics: Diagnosis Jeep Liberty II

DIAGNOSTIC CODE INDEX

OCCUPANT CLASSIFICATION MODULE (OCM) - DIAGNOSTIC CODE INDEX

Scheme 240

Diagnostic Test

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY ACTIVE DTC With the scan tool, read OCM DTCs. Does the scan tool display active B1B78-PASSENGER SEAT WEIGHT SENSOR 3 - LEFT FRONT PERFORMANCE DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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. NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness. Are any of these conditions present? Yes Replace the Passenger Seat Harness in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. REZERO SEAT WEIGHT SENSORS NOTE: The Occupant Classification System Seat Weights 9077 are required to perform this test. Verify that the passenger seat is empty. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display active B1B78-PASSENGER SEAT WEIGHT SENSOR 3 - LEFT FRONT PERFORMANCE DTC? Yes Go to step 5 No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display active B1B78-PASSENGER SEAT WEIGHT SENSOR 3 - LEFT FRONT PERFORMANCE DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 241

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read the OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY THAT DTC B1B7D-PASSENGER SEAT WEIGHT SENSOR 2 - RIGHT FRONT PERFORMANCE IS ACTIVE With the scan tool, read the OCM DTCs. Does the scan tool display active B1B7D-PASSENGER SEAT WEIGHT SENSOR 2 - RIGHT FRONT PERFORMANCE DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do 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 the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. PERFORM THE OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. NOTE: The Occupant Classification Seat Weights 9077 are required to perform this test. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, wait two minutes, and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 5 No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, wait two minutes, and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR PERFORMANCE DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No But Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTCs Present Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off and then on again. With the scan tool, read the OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY THAT DTC B1B82-PASSENGER SEAT WEIGHT SENSOR 4 - LEFT REAR PERFORMANCE IS ACTIVE With the scan tool, read OCM DTCs. Does the scan tool display active: B1B82- PASSENGER SEAT WEIGHT SENSOR 4 - LEFT REAR PERFORMANCE? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do 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 the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. PERFORM THE OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. NOTE: The Occupant Classification Seat Weights 9077 are required to perform this test. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 5 No Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete wait two minutes and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR PERFORMANCE DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - But Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off and then on again. With the scan tool, read the Occupant Classification Module (OCM) DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults or battery faults? Yes Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY THAT DTC B1B87-PASSENGER SEAT WEIGHT SENSOR 1 - RIGHT REAR PERFORMANCE IS ACTIVE With the scan tool, read the OCM DTCs. Does the scan tool display active B1B87-PASSENGER SEAT WEIGHT SENSOR 1 - RIGHT REAR PERFORMANCE DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do 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 the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. PERFORM THE OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. NOTE: The Occupant Classification Seat Weights 9077 are required to perform this test. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 5 No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so, and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR PERFORMANCE DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No But Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Diagnostic Procedure

See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing and perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure.

Scheme 242

1. CHECK FOR OCCUPANT CLASSIFICATION MODULE (OCM) ACTIVE DTC: Active Internal Faults Ignition Faults Battery Fault Seat Weight Sensor DTC NOTE: Make sure the battery is fully charged. Turn the ignition on. With the scan tool, read OCM DTC. Does the scan tool display any active DTC related to the listed above? Yes Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY ACTIVE DTC With the scan tool, read OCM DTC. Does the scan tool display active B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED DTC? Yes Go to step 3 No Go to step 5
3. REZERO SEAT WEIGHT SENSORS NOTE: The Occupant Classification System Seat Weights 9077 are required to perform this test. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED DTC? Yes Go to step 4 No - Other DTC Present Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
4. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to torque specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTC Present Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No - Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. CHECK FOR ACTIVE DTC B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED With the scan tool, read the OCM DTC. Does the scan tool display active B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED DTC? Yes See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) and perform the B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED diagnostic procedure. No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display any other active DTCs? Yes Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Go to step 2
2. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to torque specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display any other active DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . Yes - Other DTC Present Diagnose and repair the active DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 243

1. VERIFY THAT B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT DTC IS ACTIVE With the scan tool, read the OCM DTCs. Does the scan tool display active B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT DTC? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and may result in possible serious or fatal injury. Replace the OCM in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 2
2. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do 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 the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. VERIFY THAT B1BBB-PASSENGER SEAT WEIGHT SENSOR INPUTS SHORTED TOGETHER DTC IS ACTIVE With the scan tool, read OCM DTCs. Does the scan tool display active B1BBB-PASSENGER SEAT WEIGHT SENSOR INPUTS SHORTED TOGETHER DTC? Yes WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and may result in possible serious or fatal injury. Replace the OCM in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 2
2. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do 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 the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 244

1. CHECK FOR ACTIVE OCM DTCs Active Internal DTC Ignition DTC Battery DTC Seat Weight Sensor DTC NOTE: Make sure the battery is fully charged. Turn the ignition on, then off and then on again. With the scan tool, read the Occupant Classification Module (OCM) DTCs. Does the scan tool display any active DTCs listed above? Yes Perform the appropriate DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Go to step 2
2. ACTIVE OR STORED DTC With the scan tool, read the OCM DTCs. Does the scan tool display active B1BBC-OCS NEGATIVE SYSTEM WEIGHT DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display active B1BA8-OCS NOT CALIBRATED DTC? Yes Go to step 4 No Active DTCs are present. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) and perform the appropriate DTC. No No Active DTCs Present. Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
4. VERIFY SENSOR IS TIGHTENED TO SPECIFICATION WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTCs. Does the scan tool display active B1BA8-OCS NOT CALIBRATED DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No DTCs are Present. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) and perform the appropriate DTC. No No Active DTCs Present. Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. MODULE CONFIGURATION Does the scan tool display B1BBD-OCM CURRENT CONFIGURATION TABLE UNPROGRAMMED? Yes Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and may result in possible serious or fatal injury. Replace the OCM in accordance with the service information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 245

1. RE-ZERO OCM SEAT WEIGHT SENSORS NOTE: Make sure that the battery is fully charged. Turn the ignition on. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C23-PASSENGER SEAT WEIGHT 3 - LEFT FRONT CONFIGURATION MISMATCH DTC? Yes Go to step 2 No - Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all of the Seat Weight Sensor mounting screws are tightened to torque specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C23-PASSENGER SEAT WEIGHT 3 - LEFT FRONT CONFIGURATION MISMATCH DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. PERFORM OCM SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. Turn the ignition on. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C24-PASSENGER SEAT WEIGHT SENSOR 2 - RIGHT FRONT CONFIGURATION MISMATCH DTC? Yes Go to step 2 No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. VERIFY SENSOR IS TIGHTENED TO SPECIFICATION WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C24-PASSENGER SEAT WEIGHT SENSOR 2 - RIGHT FRONT CONFIGURATION MISMATCH DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. PERFORM OCM SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. Turn the ignition on. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read OCM DTC. Does the scan tool display active B1C25-PASSENGER SEAT WEIGHT SENSOR 4 - LEFT REAR CONFIGURATION MISMATCH DTC? Yes Go to step 2 No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. VERIFY SENSOR IS TIGHTENED TO SPECIFICATION WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read OCM DTC. Does the scan tool display active B1C25-PASSENGER SEAT WEIGHT SENSOR 4 - LEFT REAR CONFIGURATION MISMATCH DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. PERFORM OCM SYSTEM VERIFICATION TEST NOTE: Make sure that the battery is fully charged. Turn the ignition on. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C26-PASSENGER SEAT WEIGHT SENSOR 1 - RIGHT REAR CONFIGURATION MISMATCH DTC? Yes Go to step 2 No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. VERIFY SENSOR IS TIGHTENED TO SPECIFICATION WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, select System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is complete, proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B1C26-PASSENGER SEAT WEIGHT SENSOR 1 - RIGHT REAR CONFIGURATION MISMATCH DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No DTC are Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 246

1. CHECK FOR AN ACTIVE DTC Turn the ignition on. With the scan tool, read OCM DTCs. Does the scan tool display active B210E-BATTERY VOLTAGE HIGH DTC? Yes Go to step 2 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. CHECK THE BATTERY VOLTAGE TO THE OCCUPANT CLASSIFICATION MODULE With the scan tool in Data Display, read OCM battery voltage. Is the battery voltage greater than 24.0 ± 0.25 volts? Yes Go to step 3 No Replace the OCM in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. CHECK FOR CHARGING SYSTEM RELATED DTCs IN THE POWERTRAIN CONTROL MODULE (PCM) OR THE ENGINE CONTROL MODULE (ECM) With the scan tool in ECU View, select PCM or ECM and check for any Charging System related DTCs. Does the scan tool display any Charging System related DTCs? Yes Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(/jeep/liberty/ii-2007-2012/remont/testing-diagnostics/#diagnostic-code-index-gas) and perform the appropriate diagnostic procedure for gas engine applications. No Replace the OCM in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE DTC NOTE: Make sure that the battery is fully charged. NOTE: This DTC cannot be cleared until the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure has been completed successfully. NOTE: Troubleshoot any Ignition, Battery, Seat Weight Sensor or OCM Internal DTC BEFORE proceeding With the scan tool, read the OCM DTC. Does the scan tool display active B2206-CURRENT VIN MISSING/MISMATCH DTC? Yes Go to step 2 No Test complete, the condition or conditions that originally set this DTC are not present at this time.
2. CHECK THE VIN STORED IN THE PCM OR ECM With the scan tool, compare the VIN that is stored in the Powertrain Control Module (PCM) or Engine control Module (ECM) to the VIN of the vehicles VIN plate. Does the VIN stored in the PCM or ECM match the vehicles VIN? Yes Go to step 3 No Replace and Configure the Powertrain Control Module (PCM) or Engine Control Module (ECM) in accordance with the service information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-350095-S23020759652009121400000) for gas engine applications.
3. PERFORM THE RE-ZERO OCM SEAT WEIGHT SENSORS PROCEDURE NOTE: Make sure that the battery is fully charged. NOTE: The Occupant Classification Seat Weights 9077 and Strain Gage Alignment Tool 9698A are required to perform this test. Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display any active B2206-CURRENT VIN MISSING/MISMATCH DTC? Yes Go to step 4 No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
4. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display active B2206-CURRENT VIN MISSING/MISMATCH DTC? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and may result in possible serious or fatal injury. Replace the OCM in accordance with the Service Information. Replace the Service Kit if a seat from another vehicle was installed. Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTC Present Diagnose and repair the other DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTC Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. VERIFY ACTIVE DTC NOTE: Make sure that the battery is fully charged. Turn the ignition off, wait ten seconds and turn ignition on. With the scan tool, read the OCM DTC. Did the scan tool display active or stored B2212-OCCUPANT CLASSIFICATION MODULE INTERNAL DTC? Yes Go to step 2 No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
2. RE-ZERO OCM SEAT WEIGHT SENSORS Verify that the passenger seat is empty. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display any active B2212-OCCUPANT CLASSIFICATION MODULE INTERNAL DTC? Yes Go to step 3 Yes - Other DTCs Present Diagnose and repair the DTC. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of DTCs. No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Verify that all of the Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read the OCM DTC. Does the scan tool display any active B2212-OCCUPANT CLASSIFICATION MODULE INTERNAL DTC? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and may result in possible serious or fatal injury. Replace the Occupant Classification Module (OCM) in accordance with the service information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present. Perform the appropriate diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present. Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

Scheme 247

1. VERIFY ACTIVE DTC NOTE: Make sure the IOD fuse is installed and battery Voltage is between 10 and 16 Volts before proceeding. Turn the ignition on. Using a scan tool, read DTCs. Is the U0002-CAN C BUS OFF PERFORMANCE DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) and perform the U0001-CAN C BUS CIRCUIT diagnostic procedure. No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) and perform the Stored Lost Communication DTCs diagnostic procedure.

1. VERIFY ACTIVE DTC NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Turn the ignition on. With the scan tool, read ORC DTCs. Is the U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) and perform the U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) diagnostic procedure. No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) and perform the Stored Lost Communication DTCs diagnostic procedure.

1. VERIFY ACTIVE DTC NOTE: Make sure the IOD fuse is installed and battery Voltage is between 10 and 16 Volts before proceeding. Turn the ignition on. Using a scan tool, read DTCs. Is the U0151-LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC) DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) and perform the U0151-LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC) diagnostic procedure. No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) and perform the Stored Lost Communication DTCs diagnostic procedure.

Scheme 248

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION SYSTEM (OCS) NOTE: Make sure the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of symptoms. No Go to step 2
2. VERIFY ACTIVE DTC With the scan tool, read OCM DTCs. Does the scan tool display active U1419-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 3 - LEFT FRONT? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist. Replace the Passenger Seat Harness in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. RE-ZERO OCM SEAT WEIGHT SENSORS NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTC? Yes Go to step 5 No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of symptoms. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) for a complete list of symptoms. No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Go to step 2
2. VERIFY THAT DTC U141A-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 2 - RIGHT FRONT With the scan tool, read OCM DTCs. Does the scan tool display active U141A-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 2 - RIGHT FRONT DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist. Replace the Passenger Seat Harness in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. RE-ZERO OCM SEAT WEIGHT SENSORS NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 5 No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Go to step 2
2. VERIFY ACTIVE DTC With the scan tool, read OCM DTCs. Does the scan tool display active U141B-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 4 - LEFT REAR DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist. Replace the Passenger Seat Harness in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. RE-ZERO OCM SEAT WEIGHT SENSORS NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 5 No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. Refer to «DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure»(ref-350071-S42608169052009121400000) .
5. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM) NOTE: Make sure that the battery is fully charged. Turn the ignition on, then off, and then on again. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults? Yes Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Go to step 2
2. VERIFY ACTIVE DTC With the scan tool, read OCM DTCs. Does the scan tool display active U141C-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 1 - RIGHT REAR DTC? Yes Go to step 3 No Perform the OCS INTERMITTENT TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
3. INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. 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? Yes NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if any of these conditions exist. Replace the Passenger Seat Harness in accordance with the Service Information. Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No Go to step 4
4. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display active U141C-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 1 - RIGHT REAR DTC? Yes Go to step 5 No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .
5. VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Verify that the passenger seat is empty. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display active U141C-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 1 - RIGHT REAR DTC? Yes Perform the DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) . No - Other DTCs Present Diagnose and repair the DTCs. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Active DTCs Present Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

DIAGNOSIS AND CHECKOUT PROCEDURE FOR SEAT WEIGHT SENSORS

1. VERIFY COMPLAINT Turn the ignition off. Move the front passenger seat to the full rear position. Verify that the seat is empty, the seat back is in the normal upright position and that the seat is not interfering with any interior components. Verify that all related connectors are properly seated and locked. Turn the ignition on. With the scan tool in OCM, select Data Display and note the Passenger Seat Weight Sensor voltage for all four sensors (Left Front, Right Front, Left Rear and Right Rear). Move the front passenger seat to the mid track position. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. Move the front passenger seat to the full forward position. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts. to 3.6 Volts for each sensor in each position (full rear, mid track, and full forward). Is any sensor voltage reading out of the acceptable range in any position? Yes Go to step 2 No Perform the B1BA7-Occupant Classification System Verification Required. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . NOTE: If the test passes, the seat weight sensing system is working properly. Return to the procedure that directed you to this procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) .
2. CHECKING FOR BENT FLOOR PAN Turn the ignition off. Loosen all of the mounting screws retaining the front passenger seat to the vehicle crossmembers, but do not remove them. Verify that the seat is loose and that no binding exists between the seat and the crossmembers. Move the front passenger seat to the full rear position and then to the full forward position. Tighten all of the mounting screws to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . Move the front passenger seat to the full rear position. Turn the ignition on. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. Move the front passenger seat to the mid track position. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. Move the front passenger seat to the full forward position. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor in each position. Is any sensor voltage reading out of the acceptable range in any position? Yes Go to step 3 No Perform the B1BA7-Occupant Classification System Verification Required. Return to the procedure that directed you to this procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . NOTE: If the test passes, the seat weight sensing system is working properly. Return to the procedure that directed you to this procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) .
3. CHECKING SEAT TO RISER STRESS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Loosen all of the mounting screws retaining the front passenger seat track to the riser, but do not remove them. Verify that the seat track is loose and that no binding exists between the seat track and the risers. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor. Is any sensor voltage reading out of the acceptable range? Yes Go to step 4 No Visually inspect for damaged or bent risers and crossmembers. Also, verify that the riser holes line up with the seat mounts in the crossmembers. If riser damage is apparent, replace the risers in accordance with the Service Information. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Then, reinstall the Seat Weight Sensors. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) and Go To 6 . NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. If crossmember or floorpan damage is present, repair or replace the components as necessary in accordance with the Service Information. Reinstall the seat in the vehicle in accordance with the Service Information. Turn the ignition on. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the directions displayed on the scan tool. When the test completes, Go To 1
4. TEST SEAT FRAME WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Remove the front passenger seat from the risers in accordance with the Service Information. Return the risers to their normal mounting position. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor. Is any sensor voltage reading out of the acceptable range? Yes Go to step 5 No WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Visually inspect for damaged or bent risers, a damaged or bent seat and seat structure and damaged or bent seat tracks. Also, verify that the holes in the center of the sensors line up with the seat track holes and that the seat track position locating tabs are locked in the same parallel slots. If riser damage is apparent, replace the risers in accordance with the Service Information. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Then, reinstall the Seat Weight Sensors. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) and Go To 6 . If seat or seat track damage is present, replace the components as necessary in accordance with the Service Information. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . Then, Go to step 7 .
5. TEST SENSOR WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Loosen the mounting screws of all of the Seat Weight Sensors, but do not remove them. Verify that the sensors are loose and that no binding exists between the sensors and the risers. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor. Is any sensor voltage reading out of the acceptable range? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Replace any Seat Weight Sensors that have an unacceptable voltage reading in accordance with the Service Information. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . Then, Go to step 6 No WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Replace the risers in accordance with the Service Information. Then, reinstall the Seat Weight Sensors. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) and Go to step 6 .
6. CHECKING FOR LOOSE SEAT WEIGHT SENSOR WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Tighten all of the Seat Weight Sensor mounting screws to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor. Is any sensor voltage reading out of the acceptable range? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Loosen the mounting screws of all Seat Weight Sensors with an unacceptable voltage reading, and repeat Steps 5 and 6. No Go to step 7
7. TEST SEAT TRACKS WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. Mount the front passenger seat on the risers in accordance with service information. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Using the scan tool, note the Passenger Seat Weight Sensor voltage for all four sensors. The voltage should be from 1.4 Volts to 3.6 Volts for each sensor. Is any sensor voltage reading out of the acceptable range? Yes WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Replace the seat track in accordance with the Service Information. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . Verify that no binding exists between the seat and risers. Then, repeat Steps 6 and 7. No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. VERIFY ACTIVE DTC NOTE: Make sure the battery is fully charged. NOTE: The OCS Seat Weights 9077 and Strain Gage Alignment Tool 9698A special tools are required to perform this test. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs? Yes Go to step 2 No Perform the OCS VERIFICATION TEST. Refer to «DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure»(ref-350071-S42608169052009121400000) .
2. PERFORM THE OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury. CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to «Restraints - Specifications»(ref-350045-S10271288992009121400000) . WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows. With the scan tool, read OCM DTCs. Does the scan tool display any active DTCs? Yes Perform the appropriate diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) . No Perform the OCS VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure»(ref-350097-S07453899422009121400000) .

1. VERIFICATION TEST Remove any special tools or jumper wires and reconnect all previously disconnected components - except the battery. WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury. Connect the scan tool to the Data Link Connector - use the most current software available. With the scan tool to erase stored DTCs in the Occupant Classification Module (OCM) DTCs. Turn the ignition off, and wait 1five seconds, then turn the ignition on. Wait one minute, using the scan tool read active OCM DTCs and if there are none present read the stored codes. If the scan tool shows any active or stored codes, follow path specified for that trouble code. If no active or stored codes are present, the repair is complete. Are any DTCs present or is the original condition still present? Yes Repair is not complete. See «DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing»(ref-350097-S15140359092009121400000) and perform the appropriate diagnostic procedure. No If the battery was disconnected for any reason, you must perform the Battery Reconnection procedure. See «BATTERY RECONNECTION»(ref-350034-S33614750302009121400000) . Perform the AIRBAG VERIFICATION TEST. Refer to «DTC-Based Diagnostics/CONTROLLER, Occupant Restraint (ORC) - Standard Procedure»(ref-350071-S42608169052009121400000) .

See also:
• DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing