Ignition Switch Circuit Malfunction
The ignition switch circuit has detected a malfunction.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
When you turn the key or press the button to start the vehicle, the ignition switch should send a signal to the vehicle's computer. If there's a problem in this circuit, it can't properly tell the computer to start the engine. This can happen if the switch itself is faulty or if wiring to it is damaged.
What the computer is actually seeing
The computer monitors the voltage level from the ignition switch. A typical voltage reading should be close to battery voltage (around 12V) when in the 'start' position. If it reads significantly lower or not at all, that's a problem.
What a healthy reading looks like
12V to 14V when in 'run' or 'start' position. A reading below 9V could indicate an issue.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check battery voltage; should be between 12V and 14V.
- 22. Inspect the ignition switch for physical damage or wear.
- 33. Check the wiring and connectors from the ignition switch to the computer for continuity and integrity.
- 44. Verify the voltage at the ignition switch connector, in 'run' position there should be near battery voltage.
- 55. If wiring and connectors are good and voltage is low - replace the ignition switch.
Common causes
- Faulty ignition switch
- Damaged wiring or connectors
- Corroded terminals
- Faulty key fob (for push-to-start systems)
Typical repair cost
$$ to $$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive as the vehicle may not start or could stall unexpectedly.
Will this problem come back after clearing the code?
If the underlying issue isn't fixed, the code will likely return.
Why does it pair with other codes?
Multiple codes may indicate a shared fault in the ignition system, such as wiring issues.
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