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Climate Control Seat System

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
CLIMATE CONTROL SEAT SYSTEM - TROUBLESHOOTING

Symptom Suspect Area See Section
Climate control seat system does not operate.
(In case of climate control ECU does not enter FAIL-SAFE mode)
  1. FRS/HTR Fuse
  2. P-IG Fuse
  3. P IG1 Relay
  4. Climate control switch (Telltale Light Switch)
  5. Climate control ECU
  6. Wire Harness
  1. POWER SOURCE
  2. POWER SOURCE
  3. POWER SOURCE
  4. INSPECTION
  5. INSPECTION
  6. -
Climate control seat system does not operate.
(In case of climate control ECU enters FAIL-SAFE mode)
  1. Proceed to "TROUBLESHOOTING"
  1. TROUBLESHOOTING
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