B1417 — Power Window LR Motor Circuit Short To Ground

OBD2 code B1417 flags a problem with the body electrical system (power window LR motor circuit short to ground). The car is usually drivable while you plan the repair. Common culprits: blown fuse or failed relay, damaged wiring in door jambs or wet areas, faulty switch, motor or actuator of the affected system.

body electrical

Is it safe to drive?

Short-term driving is OK Usually safe to drive — body codes rarely affect drivability. Exceptions: exterior lighting and wipers in bad weather, and central locking faults that can leave the car unsecured.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm B1417 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many B0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the body electrical system for damage, corrosion, chafing or poor contact.
Subsystem check Operate the affected function while watching its switch and motor PIDs in live data.
Subsystem check Inspect connectors and wiring at flex points (door jambs, tailgate hinges) — wires break there first.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm B1417 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for B1417 (parts and labor, USD, independent shop rates): BCM repair or replacement: $300–$900; Repair wiring or connectors: $80–$250; Replace the switch or actuator: $120–$450. Overall, fixing B1417 usually costs between $80 and $900. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Will B1417 clear itself?

Sometimes B1417 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.

What are the symptoms of B1417?

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

Is it safe to drive with B1417?

Usually safe to drive — body codes rarely affect drivability. Exceptions: exterior lighting and wipers in bad weather, and central locking faults that can leave the car unsecured.

What is the most common cause of B1417?

The most common causes are: blown fuse or failed relay, damaged wiring in door jambs or wet areas, faulty switch, motor or actuator of the affected system.

How do I diagnose B1417 myself?

Start with a scan: confirm B1417, 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.

The engine control module keeps watch over every electrical circuit in your car. When something goes wrong in the body control system, it logs a specific fault code. Code B1417 points specifically to a short circuit on the left rear power window motor circuit — the module has detected that the circuit is pulling current to ground when it shouldn't be.

Power window motors draw significant current when they operate. The body control module (BCM) monitors the voltage and current flow through each window motor circuit. When a wire's insulation fails — often from flexing at door hinges or water intrusion — the exposed copper shorts to the vehicle's chassis ground. The module senses this abnormal condition and immediately sets B1417. It also saves a freeze frame snapshot: engine RPM, load, coolant temperature, and vehicle speed captured at the exact moment the fault occurred. That snapshot is invaluable during diagnosis because it tells you what the car was doing when the problem surfaced.

B1417 typically stores over multiple drive cycles before the check engine light illuminates. The short-to-ground condition prevents the motor from receiving proper voltage, so the left rear window stops responding to switch commands. Sometimes the switch itself flickers or dies entirely. In most cases the engine runs normally — B1417 is a body electrical issue, not an engine problem.

Common symptoms of B1417

Check engine or warning light activates on the dashboard
Left rear power window stops moving in both directions
Window switch feels unresponsive or indicator lights fail
Intermittent operation — window works sometimes, then quits
No effect on engine performance, transmission, or drivetrain
Related circuits (other windows on the same door) may also act up

What causes B1417?

Blown fuse protecting the left rear window circuit — the most frequent culprit
Failed left rear window motor with internal short
Faulty window switch with worn contacts
Damaged wiring at the door hinge boot or in the door jamb
Water intrusion at connectors causing corrosion and shorts
Body control module internal failure (less common but possible)

How to diagnose B1417

Hook up an OBD2 scanner and confirm B1417 is stored in the BCM. Record the freeze frame data — it shows engine conditions when the fault first appeared and guides your test drive.
Pull all stored codes. Related body electrical codes often point to the real root cause. Check manufacturer TSBs for your specific make and model — some window circuit faults have factory-issued software updates or known fixes.
Visually trace the left rear window wiring. Inspect the harness inside the door panel and at the door hinge area where wires flex constantly. Look for chafed insulation, broken strands, and corroded pins.
Test the window switch and motor directly. Use a multimeter to check for resistance shorts to ground at the motor harness. If the motor shows a direct short, it needs replacement.
Operate the switch while monitoring live data on the scanner. When B1417 is active, the BCM typically cuts power to the circuit, so watching the data while wiggling the harness at the door jamb often reveals the intermittent fault.
Clear the code and perform a full drive cycle, including the conditions from the freeze frame data. If B1417 returns, you have confirmed an ongoing hard fault.

How to fix B1417

Always investigate inexpensive possibilities before buying expensive components:

Replace the left rear window switch — $120–$450 (parts and labor)
Repair damaged wiring or corroded connectors — $80–$250
Replace the window motor — $150–$350 (parts and labor)
Repair or replace the body control module — $300–$900

How much does it cost to fix B1417?

Total cost hinges entirely on which component caused the short. Here are typical scenarios at independent shop rates in USD:

Switch replacement: $120–$450
Wiring repair or connector cleaning: $80–$250
Window motor replacement: $150–$350
BCM repair or replacement: $300–$900

Across all repair paths, fixing B1417 generally runs between $80 and $900. A systematic diagnosis before buying parts prevents wasted money — the most expensive fix is rarely where you should start.

Can you drive with B1417?

Usually safe to continue driving — body codes do not directly affect engine operation or transmission function. That said, a stuck window in extreme heat or cold creates discomfort. If the fault involves exterior lighting, wipers, or central locking, address it promptly. A non-functional left rear window is inconvenient but not dangerous to the drivetrain.