P1351
Ignition Coil Control Circuit High Voltage
What it means
P1351. Ignition Coil Control Circuit High Voltage. This Chevy-enhanced code applies to Silverado, Sierra, Tahoe, Suburban, Express.
Findings, check these first
- Shorted ignition coil driver pulling the IC circuit high
- IC control wire shorted to battery voltage
- Failed ignition control module on distributor systems
- Corroded coil connector feeding voltage back
- PCM ignition driver fault
Standard procedure
- Identify the affected cylinder with misfire counters on a Tech2 or GDS2
- Disconnect the coil and check whether the high voltage follows the coil or the harness
- Test the IC control wire for shorts to power
- Inspect coil and module connectors for heat damage
- Replace the coil or module only on confirmed failure, then clear and verify misfires stop
Look up another code
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Sources and review
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Last updated 2026-09-13.
Report a correction for P1351. Include your vehicle, the issue and a source if you have one.