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.
2008 Jeep Grand Cherokee SRT-8FACTORY OEM SERVICE PROCEDURE
Automatic HIGHBEAM Module (AHBM) - Electrical Diagnostics
- Diagnostic Code Index
- DTC Troubleshooting
- B16A7-High Beam Camera Alignment Performance- Left
- B16A8-High Beam Camera Alignment Performance- Right
- B16A9-High Beam Camera Alignment Performance- Top
- B16AA-High Beam Camera Alignment Performance- Bottom
- B210A-System Voltage Low
- B210B-System Voltage High
- B210D-Battery Voltage Low
- B210E-Battery Voltage High
- B223A-Auto High Beam Ecu Internal
- U0019-Can B Bus
- U0020-Can B Bus Off Performance
- U0141-Lost Communication With Front Control Module
- U0155-Lost Communication With Cluster/CCN
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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