Back to 2002 Cadillac Escalade

2002 CADILLAC ESCALADE

6.0L V84WDAUTOMATICgas
3 active safety recalls on this vehicle — view recalls
Repairs0Labor503Torque3680Fluid9DTC745Battery0Maintenance0Recalls3
P1351high severityPowertrain

Ignition Control Circuit High Voltage

on 2002 Cadillac Escalade 6.0L V8 · 4WD

What this code means

The PCM detected higher than expected voltage on the ignition control output circuit when the circuit should be low.

Symptoms

  • Check Engine Light
  • Engine misfires
  • Rough running
  • Possible no-start

Common causes

  • Short to voltage in IC circuit
  • Faulty ignition control module
  • Damaged coil causing feedback
  • Wiring issue

Diagnostic steps

  1. Test IC circuit voltage
  2. Check for shorts to voltage in wiring
  3. Test ignition module
  4. Inspect coil primary circuits

Repair notes

Repair short in wiring or replace ignition module/coil.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →