What it means
Voltage on the charge status indicator b control circuit is below the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
At a glance
- Usually lights the check-engine light
How it works
Charge status indicator B has a dedicated control circuit that lets the control module operate and monitor it. This code sets when voltage in indicator B’s circuit is below the expected range, which may be caused by a short to ground, an internal indicator fault, or a poor connector contact.
Common causes
Most likely first.
- Wire shorted to ground
- Lamp internal short
- Connector pins corroded - high contact resistance
Symptoms
- Charge status indicator may not illuminate or may behave unexpectedly
- Hybrid/EV system warning light may turn on
How to diagnose it
- Record freeze-frame data and check live voltage or command data specifically for charge status indicator B.
- Inspect indicator B’s connector and harness for chafing, water ingress, pushed-back pins, corrosion, or loose terminals.
- Monitor the circuit while gently moving the accessible harness to identify an intermittent low reading on circuit B.
- Check circuit B for a short to ground and test indicator B for an internal short using the manufacturer’s procedure.
- Measure circuit voltage and continuity under specified conditions and compare with the manufacturer’s specification.
Common fixes
- Repair wiring shorted to ground in charge status indicator B’s circuit.
- Restore connector terminal fit and repair corrosion or water damage.
- Replace indicator B if testing confirms an internal short.
- Verify circuit B and indicator B operation after repairs.
Can I keep driving?
Indicator B may fail or behave unpredictably, and a hybrid/EV warning may appear; the code by itself does not establish whether the vehicle can charge. Confirm charging status from the vehicle or charging equipment and stop if another charging or high-voltage warning appears.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.