B2738 RAM Code - Center Pedestrian Protection Satellite Acceleration Sensor
Quick Answer
The Pedestrian Protection Satellite Sensors perform internal self-tests and communicate the sensors status using power supplied by the Occupant Restraint Controller (ORC). Common causes include Faulty Center Pedestrian Protection Satellite Acceleration Sensor, Center Pedestrian Protection Satellite Acceleration Sensor harness is open or shorted, Center Pedestrian Protection Satellite Acceleration Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2738 RAM indicates Center Pedestrian Protection Satellite Acceleration Sensor.
- Common causes
- Common causes include Faulty Center Pedestrian Protection Satellite Acceleration Sensor, Center Pedestrian Protection Satellite Acceleration Sensor harness is open or shorted, Center Pedestrian Protection Satellite Acceleration Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2738 RAM Description
This DTC sets when the ORC receives notification of a self test failure within the impact sensor within 100 ms for continuous test and 1 second for startup test. Once set, this DTC is latched for the entire ignition cycle or until the clear faults scan tool command is used, depending on the specific condition that sets the DTC.
What are the Possible Causes of the DTC B2738 RAM?
- Faulty Center Pedestrian Protection Satellite Acceleration Sensor
- Center Pedestrian Protection Satellite Acceleration Sensor harness is open or shorted
- Center Pedestrian Protection Satellite Acceleration Sensor circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B2738 RAM?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
B2738-78 CENTER PEDESTRIAN PROTECTION SATELLITE SENSOR ALIGNMENT OR ADJUSTMENT INCORRECT
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2738 RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B2738 RAM Code
1. What are common symptoms of OBDII code B2738 RAM related to the Center Pedestrian Protection Satellite Acceleration Sensor?
- Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the vehicle's pedestrian protection system.
2. What are the possible causes of OBDII code B2738 RAM indicating an issue with the Center Pedestrian Protection Satellite Acceleration Sensor?
- The code may be triggered by a faulty acceleration sensor, damaged wiring or connectors, or issues with the pedestrian protection system itself.
3. How can I diagnose OBDII code B2738 RAM for the Center Pedestrian Protection Satellite Acceleration Sensor issue?
- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, inspecting the sensor and related components for damage, and performing electrical tests to identify the root cause.
4. Can I drive my vehicle with OBDII code B2738 RAM related to the Center Pedestrian Protection Satellite Acceleration Sensor?
- It is not recommended to drive the vehicle with this code active, as it may indicate a potential safety issue with the pedestrian protection system or airbags.
5. How can I repair OBDII code B2738 RAM for the Center Pedestrian Protection Satellite Acceleration Sensor issue?
- Repair options include replacing the faulty acceleration sensor, repairing damaged wiring or connectors, or addressing any underlying issues with the pedestrian protection system.
6. Are there any DIY tips for addressing OBDII code B2738 RAM related to the Center Pedestrian Protection Satellite Acceleration Sensor?
- DIY enthusiasts can attempt to inspect the sensor and wiring for visible damage, but it is recommended to consult a professional for accurate diagnosis and repair.
7. Is resetting the OBDII system enough to clear the B2738 RAM code for the Center Pedestrian Protection Satellite Acceleration Sensor?
- Simply resetting the system may temporarily clear the code, but it is important to diagnose and address the root cause to prevent the code from reoccurring.
8. How much does it typically cost to repair OBDII code B2738 RAM for the Center Pedestrian Protection Satellite Acceleration Sensor issue?
- Repair costs can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.
9. Can OBDII code B2738 RAM impact the overall safety of the vehicle?
- Yes, this code may affect the proper functioning of the pedestrian protection system and airbags, potentially compromising the safety of occupants and pedestrians in the event of a collision.
10. How often should I have the Center Pedestrian Protection Satellite Acceleration Sensor checked to prevent OBDII code B2738 RAM issues?
- It is recommended to have the sensor and related components inspected during routine maintenance visits or whenever you notice any warning lights or unusual behavior in the vehicle's safety systems.
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