B1395 — Power Door Memory Lock Relay Circuit Short To Ground

Will B1395 clear itself?

Sometimes B1395 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

How do I diagnose B1395 myself?

Start with a scan: confirm B1395, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the body electrical system, and verify the suspect component against live data before buying parts.

What are the symptoms of B1395?

Drivers most often notice: no impact on engine operation in most cases, the affected function (locks, windows, lighting, wipers) works intermittently or not at all, warning light on the dashboard.

What is the most common cause of B1395?

The most common causes are: faulty switch, motor or actuator of the affected system, blown fuse or failed relay, body control module (BCM) fault.

What does OBD2 code B1395 mean?

Power Door Memory Lock Relay Circuit Short To Ground (B1395): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by faulty switch, motor or actuator of the affected system, blown fuse or failed relay, body control module (BCM) fault.

When your vehicle's body control module detects that a power door memory lock relay circuit is pulling current to ground when it shouldn't, it logs trouble code B1395. This fault falls squarely in the body electrical category — the system responsible for power locks, windows, lighting circuits, and similar convenience features. The module doesn't flag this code on a single glitch; it requires the abnormal condition to repeat under specific operating parameters before illuminating the check engine or body system warning light. Think of it as the ECU needing confirmation before bothering you with a warning.

The freeze frame data stored alongside B1395 is your roadmap. It captures engine load, RPM, coolant temperature, and vehicle speed at the exact moment the fault occurred. These readings tell you whether the problem happens during cold starts, highway cruising, or when you're fiddling with the door controls. Reproducing those conditions during diagnosis isn't optional — it's how you verify you've actually fixed the issue rather than just temporarily masking it.

Common Symptoms

• No change to engine performance or drivability in most vehicles
• Affected function — whether it's the power locks, windows, interior lighting, or wipers — operates intermittently or stops working entirely
• Dashboard warning light stays on or flickers depending on system state
• Door locks may cycle erratically or fail to respond to switch commands
• Individual window switches or the master switch stop working
• In some cases, multiple body functions are affected simultaneously due to shared circuits

What Causes B1395?

The most likely culprit is a failing switch, motor, or actuator within the affected door circuit — these components see constant use and wear out over time. Wiring damage in the door jambs ranks second, since flexing wires eventually crack their insulation and short to ground. Corroded or loose connectors block proper signal flow and can mimic a short condition. A faulty body control module itself is possible but less common — modules usually fail completely rather than develop partial shorts. Blown fuses or failed relays in the power distribution path will also trigger B1395. Water intrusion into door mechanisms, common after pressure washing or heavy rain, creates conductive paths that look exactly like a short to ground.

How to Diagnose

Start by connecting a quality OBD2 scanner and confirming B1395 is stored, then save the freeze frame data before clearing anything. The freeze frame conditions guide your entire troubleshooting process. Next, pull all stored codes from every module — related faults often point to the root cause rather than just the symptom. Check for manufacturer technical service bulletins specific to your make and model; many body electrical codes have documented factory remedies or software recalibrations available through the manufacturer website or NHTSA database. Perform a thorough visual inspection of all wiring and connectors tied to the affected circuit, looking for damaged insulation, corrosion buildup, and loose terminals. Use your scanner's live data to monitor switch and motor operation while physically actuating the controls — watch for dropped signals or erratic readings. Pay special attention to flex points where wires pass through door jambs and tailgate hinges; these areas experience the most mechanical stress and fail first. Finally, clear B1395, complete a full drive cycle matching the freeze frame conditions, and verify the code does not return before considering the repair complete.

Repair Options and Costs

If the switch or actuator is confirmed faulty, replacement typically runs $120–$450 depending on the component and labor involved. Wiring harness repairs or connector replacement generally cost $80–$250, often on the lower end if only a single connector needs attention. When the body control module itself is at fault, repair or replacement usually falls between $300–$900 — the higher end reflects dealer programming and replacement unit costs.

Total Repair Cost

B1395 repairs typically span $80 to $900 depending entirely on which component fails. The most expensive scenario — BCM replacement — is rarely the first thing to check. Smart diagnosis upfront saves money because you won't be buying parts you don't need.

Can You Drive with B1395?

Generally yes — body electrical faults rarely impact engine operation or safe handling. The practical exceptions matter though: if exterior lighting or wipers are affected, adverse weather becomes genuinely hazardous. Central locking failures that leave doors unlocked create a security concern. Use judgment based on which system is actually affected.

Related OBD2 codes

• B1300: Power Door Lock Circuit Failure
• B1301: Power Door Lock Circuit Open
• B1302: Accessory Delay Relay Coil Circuit Failure
• B1303: Accessory Delay Relay Coil Circuit Open
• B1304: Accessory Delay Relay Coil Circuit Short To Battery
• B1305: Accessory Delay Relay Coil Circuit Short To Ground