Operation CHARM
: Car repair manuals for everyone.
Home
>>
Chevrolet
>>
1990
>>
Lumina L4-151 2.5L
>>
Repair and Diagnosis
>>
Heating and Air Conditioning
>>
Blower Motor
Blower Motor
Expand All (for easy ctrl-f)
Collapse All
Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
System Diagnosis
With A/C
Without A/C
Troubleshooting Hints
With A/C
Without A/C
Symptom Related Diagnostic Procedures
With A/C
Test A: Blower Motor Test
Test B: Blower Motor Relay Test
Table 1of 2
Table 2 of 2
Test C: Blower Switch Test
Table 1 of 2
Table 2 of 2
Test D: Blower Resistor Test
Test E: Low Blower Relay Test
Table 1 of 2
Table 2 of 2
Test F: Heater and A/C Control Assembly Blower Control Test
Test G: LED Test
Without A/C
Test A - Blower Motor Test
Test B - High Blower Relay Test
Table 1 of 2
Table 2 of 2
Test C - Blower Switch Test
Table 1 of 2
Table 2 of 2
Test D - Blower Resistor Test
Test E - Low Blower Relay Test
Table 1 of 2
Table 2 of 2
Test F - Heater Control Assembly Blower Control Test
Test G - LED Test
Blower Noise
Chart 1 of 2
Chart 2 of 2
Locations
Component Locations
Harness Locations
Service and Repair
Blower Motor
Blower Motor Fan
Diagrams
Diagram Information and Instructions
Cell References
Schematic Symbols
Symbol Identification
Wire Color Code Identification
Diagnostic Aids
Pull-to-Seat Connectors
Push-to-Seat Connectors
Electrical Diagrams
With A/C
Without A/C