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Home >> Volvo >> 1995 >> 850 GLT, 4D Sedan, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Controls - Tests W/Codes - Non-Turbo - MOTRONIC 4.3) >> Circuit Tests >> DTC 4-3-2 - Temperature Warning Level 1 Or DTC 5-1-3 - Temperature Warning Level 2

DTC 4-3-2 - Temperature Warning Level 1 Or DTC 5-1-3 - Temperature Warning Level 2

WARNING: This page is about a different car, the 1996 Volvo 850. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check for other DTCs. If DTC 5-1-4 is stored, perform testing for that DTC first. If DTC 5-1-4 is not stored, go to next step.
  2. Using Volvo Scan Tool (998-8686 ), use Diagnostic Test Mode (DTM) 3 to check if engine cooling fan is functioning and that air is being drawn into connector for ECM box air hose in fan shroud. If engine cooling fan operates, go to next step. If engine cooling fan does not operate, perform testing for DTC 5-1-4.
  3. Turn ignition on. Set blower switch at highest speed. Close dash vents. Check if there is a slight stream of air from control module box air hose. If air is blowing from hose, control module box is cooling okay. Erase DTC. If no air is coming from hose, ensure hoses and couplings are in place and not blocked. Repair as necessary.
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