C1460 — Vehicle Accelerometer Power Circuit Failure

C1460 — Vehicle Accelerometer Power Circuit Failure. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: control module driver fault, open or shorted wiring in the circuit, poor ground connection.

chassis (brakes/steering/suspension)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm C1460 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 C0xxx 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 vehicle accelerometer power circuit for damage, corrosion, chafing or poor contact.
Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm C1460 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for C1460 (parts and labor, USD, independent shop rates): Replace the faulty sensor or actuator: $150–$500; Control module repair: $300–$1,000; Repair wiring or connectors: $80–$250. Overall, fixing C1460 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What does OBD2 code C1460 mean?

How do I diagnose C1460 myself?

Start with a scan: confirm C1460, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the vehicle accelerometer power circuit, and verify the suspect component against live data before buying parts.

Is it safe to drive with C1460?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How much does it cost to fix C1460?

Replace the faulty sensor or actuator — $150–$500; Control module repair — $300–$1,000; Repair wiring or connectors — $80–$250. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What is the most common cause of C1460?

The most common causes are: control module driver fault, open or shorted wiring in the circuit, poor ground connection.

When the engine control module detects a problem with the power supply feeding the vehicle accelerometer circuit, it logs trouble code C1460. This code falls within the chassis category, which covers brake, steering, and suspension-related systems. The accelerometer itself measures acceleration forces and helps various stability systems make real-time decisions while you drive. When its power circuit fails or delivers abnormal voltage, the control module notices the discrepancy, waits through the required number of drive cycles to confirm the problem is genuine rather than a temporary glitch, and then stores C1460 alongside the malfunction indicator lamp.

The control unit does not simply set the code and move on. It captures freeze frame data at the exact moment the fault occurs, recording engine speed, load, coolant temperature, vehicle speed, and other sensor readings. That snapshot becomes your most valuable diagnostic clue, because it shows what was happening when the system fell out of specification. Technicians use that data to reproduce the driving conditions and verify the repair. Without a proper fix, the affected safety systems may operate in a reduced-capacity limp mode or shut down entirely, depending on which component depends on the accelerometer power circuit.

The underlying cause of C1460 ranges from simple wiring issues to outright component failure. Loose or corroded connectors interrupt voltage delivery. Broken ground paths prevent proper circuit operation. Shorted or open wires do the same. A blown fuse removes power entirely. In some cases, the control module driver itself fails, meaning the computer cannot properly toggle the circuit even when wiring checks out. The sensor or actuator at the end of that circuit may also fail, creating the same fault signature downstream.

Symptoms of C1460

The Check Engine or MIL light illuminates on the dashboard
Fuel economy increases slightly because the engine control module may alter its operating strategy when sensor data becomes unreliable
The affected system operates intermittently or stops responding altogether
Limp-home mode activates on vehicles that de-rate performance when critical sensors misbehave
In rare cases, stalling or no-start conditions occur if the fault impacts a circuit the engine management system depends on

Common Causes

Corroded, loose, or physically damaged electrical connector in the accelerometer power circuit
Poor or interrupted ground connection at the sensor or control module
Open or shorted wiring somewhere along the power feed or signal return path
Blown fuse that feeds the affected circuit
Faulty accelerometer sensor or downstream actuator that draws abnormal current
Failed driver circuit inside the engine or body control module

How to Diagnose C1460

Plug in a compatible OBD2 scanner, retrieve C1460, and record the associated freeze frame data. That snapshot tells you the rpm, load, speed, and temperature readings present when the fault first appeared.
Scan for any additional trouble codes. Related codes often point directly to the failing component, and some manufacturers publish TSBs for specific C0xxx patterns that describe known fixes or software updates.
Perform a thorough visual inspection of the wiring harness and connectors feeding the accelerometer circuit. Look for broken insulation, chafing from rub points, moisture intrusion, and green or white corrosion buildup.
Check reference voltage, ground integrity, and signal continuity at the sensor connector using a multimeter. Compare your readings against manufacturer specifications.
Conduct a wiggle test on the harness while monitoring live data. Any signal dropouts or erratic readings point to broken strands inside a seemingly intact wire.
After clearing the code, complete a full drive cycle that reproduces the freeze frame conditions. If C1460 does not return, the issue was likely temporary or your repair addressed it.

Repair Options and Costs

Repair wiring or replace damaged connectors: $80–$250
Replace the faulty sensor or actuator: $150–$500
Control module repair or replacement: $300–$1,000

Start with the least expensive possibilities. Wiring issues and connector problems account for the majority of intermittent accelerometer faults. Replacing the module makes sense only after wiring checks out completely and the fault clearly points to the computer itself.

Driving Safety Verdict

Most vehicles remain driveable with C1460 stored, though you may notice reduced system functionality or a slight performance drop. Treat the code as urgent if accompanied by stalling, failure to start, or brake/steering warnings — in those cases, stop driving and have the vehicle towed. For mild symptoms like an illuminated light with normal handling, schedule diagnosis within a few days rather than weeks.