Automotive Flow Chart
Transmission Diagnostic Flowchart
A comprehensive troubleshooting guide for transmission issues, covering fluid conditions, shifting problems, pressure diagnostics, and transmission control module (TCM) analysis
flowchart TD
A[Transmission Issue] --> B[Type of Problem]
B -->|No Shift| C[Check Fluid]
B -->|Hard Shift| D[Check Pressure]
B -->|Slipping| E[Check TCM Codes]
C -->|Low| C1[Check Level/Leaks]
C -->|Burnt| C2[Internal Inspection]
C -->|Contaminated| C3[Flush System]
C1 -->|Leak Found| C4[Repair Leak]
C2 -->|Damaged| C5[Rebuild Required]
D -->|High Pressure| D1[Check Solenoids]
D -->|Low Pressure| D2[Check Pump]
D -->|Erratic| D3[Check Valve Body]
D1 -->|Failed| D4[Replace Solenoids]
D2 -->|Worn| D5[Replace Pump]
E -->|Has Codes| E1[Check Sensors]
E -->|No Codes| E2[Check Mechanicals]
E -->|Intermittent| E3[Road Test]
E1 -->|Bad Sensor| E4[Replace Sensor]
E2 -->|Wear Found| E5[Overhaul Trans]