B1468 — Chime Input Request Circuit Failure

How do I diagnose B1468 myself?

Start with a scan: confirm B1468, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the chime input request circuit, and verify the suspect component against live data before buying parts.

Is it safe to drive with B1468?

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 does OBD2 code B1468 mean?

B1468 — Chime Input Request Circuit Failure. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: body control module (BCM) fault, corroded or loose connectors, damaged wiring in door jambs or wet areas.

Will B1468 clear itself?

Sometimes B1468 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 B1468?

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

B1468 is a body electrical fault code logged by the vehicle's onboard diagnostics when a circuit involved with chime or audible alert signals behaves unexpectedly. The formal definition reads "Chime Input Request Circuit Failure," which indicates the control module has detected an abnormal condition in a switch, sensor, or signal path that feeds the dashboard chime circuit. This code sits in the B-series family, meaning it belongs to the body electronics rather than the powertrain.

The body control module (BCM) constantly monitors input signals from door ajar switches, seat belt buckles, ignition status, and other sensors that tell it when to sound a chime. When B1468 sets, the module has compared live readings against factory-defined thresholds and found the signal out of range—typically across multiple drive cycles rather than on a single glitch. During this event the ECU captures a freeze frame snapshot, recording engine RPM, calculated load, coolant temperature, and vehicle speed at the exact moment the fault was detected. That snapshot is your starting point because it shows the operating conditions under which B1468 first appeared.

Common Symptoms of B1468

• Check engine or warning light illuminated on the instrument cluster
• Affected body function operates intermittently or stops working entirely
• Audible chimes may sound at incorrect times or fail to sound when expected
• Power locks, windows, lighting, or wiper functions affected depending on vehicle
• No effect on engine performance, transmission operation, or fuel economy
• Symptoms may come and go, especially with wiring-related failures

What Causes B1468

Most B1468 faults trace to simple electrical problems before involving expensive modules:

• Corroded or loose electrical connectors at switches or control modules
• Blown fuse or malfunctioning relay feeding the chime circuit
• Faulty door ajar switch, seat belt switch, or other body sensor
• Wiring damaged by moisture intrusion or repeated flexing at door hinges
• Failed switch or actuator controlling the affected body function
• Body control module internal fault (least common cause)

How to Diagnose B1468

1. Connect an OBD2 scanner, verify B1468 is stored, and record the freeze frame data—this shows engine conditions when the fault first occurred.
2. Pull all stored codes and note any related body electrical DTCs that may point toward the root cause. Check manufacturer TSB databases for known software fixes or updates for your specific make and model.
3. Perform a thorough visual inspection of the wiring harness and connectors feeding the affected circuit, looking for chafed insulation, corrosion, broken strands, or terminals that are not fully seated.
4. Access live data and operate the malfunctioning component (locks, windows, wipers, or lighting) while monitoring the relevant switch and actuator PIDs to confirm proper signal behavior.
5. Examine wiring at high-stress points—door jambs, tailgate hinges, and anywhere wires flex repeatedly—these areas fail first due to fatigue.
6. Clear the code, drive the vehicle through conditions matching the freeze frame data, then recheck for B1468 to confirm whether the problem is truly resolved.

Repair Options and Costs

Typical repair scenarios for B1468 (parts and labor at independent shop rates, USD):

• Replace faulty switch, sensor, or actuator: $120–$450
• Body control module repair or replacement: $300–$900
• Wiring harness repair or connector replacement: $80–$250

The overall cost to fix B1468 typically falls between $80 and $900 depending on which component actually failed. A methodical diagnosis before purchasing parts always saves money—the most expensive repair is rarely the first one to try.

Can You Drive with B1468?

B1468 is generally considered safe to drive. Body codes almost never affect engine operation, acceleration, or braking. The only real concerns arise if the fault involves exterior lighting during night driving, wiper motors during rain or snow, or central locking that could leave the vehicle unsecured. Address those specific issues promptly regardless of drivability.