Shutdown Timer
Indicates a problem with the engine shutdown timer system.
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)
The shutdown timer controls when the engine shuts off after another system triggers it to do so, like power or safety features. If it fails, the engine might not shut down properly, risking damage or safety issues.
What the computer is actually seeing
The ECM looks for signals from the shutdown timer. If the timer is not functioning correctly and affects the shutdown process, it sets SPN 1562.
What a healthy reading looks like
Shutdown timer should read a value between 0 and 5 seconds for proper operation; anything outside this range can trigger the fault.
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. Inspect the wiring and connectors related to the shutdown timer for any signs of wear, corrosion, or damage. Decision: Are the connections clean and secure? Yes: proceed to step 2; No: clean or repair as necessary.
Common causes
- Faulty shutdown timer relay
- Open or shorted wiring
- Corrosion in connectors
- Software issue in ECM
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's advised to address this issue soon; continued driving might risk engine damage or unexpected shutdowns.
Will this code come back after repair?
If the underlying problem is resolved, it should stay cleared. However, ongoing wiring issues could cause recurrence.
Why is this code paired with other codes?
The shutdown timer is often involved with other systems; failures may trigger simultaneous faults due to interlinked functions.
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