IPM Repair Service - Dodge RAM 02-05

Dodge RAM TIPM / IPM (Integrated Power Module) – Troubleshooting Guide

Important: Use this guide if you reinstalled your repaired Dodge TIPM/IPM and the problem is still happening.
Important: Please do not open/disassemble the TIPM—check fuses, relays, power/grounds, wiring, and the affected circuits first.

• Step 1: Confirm installation
  • Verify the TIPM is fully mounted and all connectors are fully seated/locked
  • Inspect pins for bent/pushed pins, corrosion, or looseness at every connector
  • Ensure the harness isn’t pulled tight, pinched, or rubbing (common intermittent cause)
• Step 2: Battery voltage and grounds
  • Confirm the battery is healthy and fully charged
  • Clean/tighten battery terminals and main engine/chassis grounds
  • Low voltage can cause TIPM-controlled relays to chatter or drop out
• Step 3: Check fuses/relays correctly
  • Confirm correct fuse ratings and correct fuse locations (no “close enough” fuse swaps)
  • Test fuses for power on both sides (key OFF / key ON where applicable)
  • If equipped with removable relays, swap with known-good relays to rule out a simple relay fault
• Step 4: If you have “No start / Stall / Fuel pump” complaints
  • Determine which condition you have:
    • No crank: focus on starter relay circuit, ignition switch, neutral safety/PRNDL, and grounds
    • Crank/no start: confirm fuel pressure first (don’t assume TIPM)
  • Check for fuel pump power/ground at the tank and inspect rear harness routing for rub-through
  • A weak pump, poor ground, or wiring issue can mimic TIPM fuel pump faults
• Step 5: If accessories act intermittent (lights, wipers, horn, etc.)
  • Test the component directly (motor/pump/horn) to rule out a failed load
  • Inspect the component connector for corrosion and confirm the ground is clean/tight
  • Look for water intrusion in the TIPM area or damaged relay/fuse terminals
• Step 6: Check for water intrusion and prior handling/service
  • Inspect for moisture, corrosion, or debris around the TIPM and connectors
  • Look for aftermarket wiring taps (remote start, lights, audio) tied into TIPM circuits
• Step 7: If issues started after recent work
  • Re-check anything recently touched (battery work, fuse/relay swaps, wiring repairs)
  • Look for loose grounds, swapped fuses/relays, or pinched harness sections
• Course of action
  • If the issue persists, contact UpFix with your VIN, exact symptoms, and any codes so we can help narrow it down. Call or email for assistance.