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Pontiac
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1990
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Grand AM L4-151 2.5L
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Repair and Diagnosis
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Heating and Air Conditioning
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Blower Motor
Blower Motor
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Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
System Check
Troubleshooting Hints
Symptom Related Diagnostic Procedures
Component Tests and General Diagnostics
A: Blower Motor Test
B: High Blower Relay Test - Table 1
B: High Blower Relay Test - Table 2
Blower Resistance Test
C: Blower Resistor Assembly Test
D: Blower Switch Test - Table 2
D: Blower Switch Test - Table 1
Locations
Service and Repair
With Air Conditioning
Without Air Conditioning
Diagrams
Diagram Information and Instructions
Cell References
Symbol Identification
Part 1 of 3
Part 2 of 3
Part 3 of 3
Wire Color Code Identification
Diagnostic Aids
Pull-to-Seat Connectors
Push-to-Seat Connectors
Electrical Diagrams
Blower Controls
Without Air Conditioning
With Air Conditioning
Rear Defogger
Technical Service Bulletins
