Description and Operation
Testing and Inspection- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- Pinpoint Test A: The PCM Does Not Respond To The Scan Tool
- Pinpoint Test K: The Audio Front Control Module (ACM) Does Not Respond To The Scan Tool
- Pinpoint Test AB: The Transmission Control Module (TCM) Does Not Respond To The Scan Tool
- Pinpoint Test AC: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding
- Pinpoint Test AA: The Heated Steering Wheel Module (HSWM) Does Not Respond To The Scan Tool
- Pinpoint Test B: The ABS Module Does Not Respond To The Scan Tool
- Pinpoint Test C: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
- Pinpoint Test D: The Front Control/Display Interface Module (FCDIM) Does Not Respond To The Scan Tool
- Pinpoint Test E: The Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool
- Pinpoint Test F: The Headlamp Control Module (HCM) Does Not Respond To The Scan Tool
- Pinpoint Test G: The Steering Column Control Module (SCCM) Does Not Respond To The Scan Tool
- Pinpoint Test H: The Instrument Panel Cluster (IPC) Does Not Respond To The Scan Tool
- Pinpoint Test I: The Body Control Module (BCM) Does Not Respond To The Scan Tool
- Pinpoint Test J: The HVAC Module Does Not Respond To The Scan Tool
- Pinpoint Test L: The Audio Digital Signal Processing (DSP) Module Does Not Respond To The Scan Tool
- Pinpoint Test M: The Front Lighting Control Module (FLM) Does Not Respond To The Scan Tool
- Pinpoint Test N: The Liftgate/Trunk Module (LTM) Does Not Respond To The Scan Tool
- Pinpoint Test O: The Driver Seat Module (DSM) Does Not Respond To The Scan Tool
- Pinpoint Test P: The Global Positioning System Module (GPSM) Does Not Respond To The Scan Tool
- Pinpoint Test Q: The Dual Climate Controlled Seat Module (DCSM) Does Not Respond To The Scan Tool
- Pinpoint Test R: The Parking Aid Module (PAM) Does Not Respond To The Scan Tool
- Pinpoint Test S: The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan Tool
- Pinpoint Test T: The Head Up Display (HUD) Module Does Not Respond To The Scan Tool
- Pinpoint Test U: The Cruise-Control Module (C-CM) Does Not Respond To The Scan Tool
- Pinpoint Test V: The Side Obstacle Detection Control Module - Left (SOD-L) Does Not Respond To The Scan Tool
- Pinpoint Test W: The Side Obstacle Detection Control Module - Right (SOD-R) Does Not Respond To The Scan Tool
- Pinpoint Test X: The Tire Pressure Monitor (TPM) Module Does Not Respond To The Scan Tool
- Pinpoint Test Y: The Front Controls Interface Module (FCIM) Does Not Respond To The Scan Tool
- Pinpoint Test Z: The Remote Function Actuator (RFA) Module Does Not Respond To The Scan Tool
- Pinpoint Test AD: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding
- Pinpoint Test AE: No Infotainment Controller Area Network (I-CAN) Communication, All Modules Are Not Responding
- Pinpoint Test AF: No Power To The Data Link Connector (DLC)
- Programming and Relearning
Diagrams
Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.