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Home >> Jeep >> 2003 >> TJ (CANADA) L4-2.4L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Checking the PCM Power and Ground Circuits
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Checking the PCM Power and Ground Circuits

Test 1 - 3:






SYMPTOM
CHECKING THE PCM POWER AND GROUNDS

POSSIBLE CAUSES
- PCM fused B+ circuit
- PCM fused ignition switch output circuit
- PCM ground circuits
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