TIPM Repair Service - Version 1

TIPM (Totally Integrated Power Module) – Troubleshooting Guide

Important: Use this guide if you reinstalled your repaired TIPM 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 seated/mounted and all connectors are fully locked
  • Inspect connector pins for bent/pushed pins, corrosion, or looseness
  • Ensure the harness isn’t pulled tight, pinched, or rubbing (common intermittent cause)
• Step 2: Battery, charging, and main grounds
  • Confirm the battery is fully charged and passes a load test
  • Clean/tighten battery terminals and engine/chassis grounds
  • Low system voltage can cause TIPM-controlled relays to act erratically
• Step 3: Check fuses/relays the right way
  • Confirm correct fuse ratings and correct fuse locations (no “close enough” swaps)
  • Test fuses for power on both sides (key OFF / key ON where applicable)
  • Swap any removable relays (if equipped) with known-good relays to rule out a simple relay fault
• Step 4: If the wipers are inoperative or act weird
  • Verify wiper motor and linkage aren’t seized (a seized motor can blow fuses or overload circuits)
  • Inspect the wiper motor connector for corrosion/water intrusion
  • Check the steering column multifunction switch and related wiring if there’s no command signal
• Step 5: If the washer fluid spray is inoperative
  • Confirm the washer pump works by powering it directly (pump failure is common)
  • Check for clogged nozzles/lines before chasing electrical issues
  • Inspect the pump connector and ground for corrosion
• Step 6: If fuel pump issues / no start / stall symptoms
  • 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)
  • If fuel pressure is low/zero, check pump power/ground at the tank and inspect harness near the tank/frame
  • Check for intermittent fuel pump power loss (symptoms can mimic a bad pump)
• Step 7: If the horn is inoperative
  • Test the horn directly (power/ground at the horn)
  • Check horn fuse/relay circuits and inspect relay socket terminals for looseness/heat damage
  • If the relay never gets commanded, suspect clockspring/steering wheel switch circuits
• Step 8: Check for water intrusion and prior handling/service
  • Inspect the TIPM area for moisture, corrosion, and debris
  • Look for signs of prior wiring work or aftermarket accessories tied into TIPM circuits
• Course of action
  • If the issue persists, contact UpFix with your VIN, exact symptoms, and any codes (and whether it’s no crank vs crank/no start vs stall) so we can help narrow it down. Call or email for assistance.