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.
2021 Jeep Grand Cherokee L Laredo, AWDFACTORY OEM SERVICE PROCEDURE
Module, Digital TV
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1499-11 | B1499-11 - TV ANTENNA 1-CIRCUIT SHORT TO GROUND |
| B1499-12 | B1499-12 - TV ANTENNA 1-CIRCUIT SHORT TO BATTERY |
| B1499-13 | B1499-13 - TV ANTENNA 1-CIRCUIT OPEN |
| B149B-11 | B149B-11 - TV ANTENNA 2-CIRCUIT SHORT TO GROUND |
| B149B-12 | B149B-12 - TV ANTENNA 2-CIRCUIT SHORT TO BATTERY |
| B149B-13 | B149B-13 - TV ANTENNA 2-CIRCUIT OPEN |
| B1550-4B | B1550-4B - DIGITAL TELEVISION MODULE-OVER TEMPERATURE |
| B15B0-11 | TV ANTENNA 3-CIRCUIT SHORT TO GROUND |
| B15B0-12 | TV ANTENNA 3-CIRCUIT SHORT TO BATTERY |
| B15B0-13 | TV ANTENNA 3-CIRCUIT OPEN |
| B15B1-11 | TV ANTENNA 4-CIRCUIT SHORT TO GROUND |
| B15B1-12 | TV ANTENNA 4-CIRCUIT SHORT TO BATTERY |
| B15B1-13 | TV ANTENNA 4-CIRCUIT OPEN |
| B2199-16 | B2199-16 - BATTERY VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | B2199-17 - BATTERY VOLTAGE-CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B2204-00 | ECU CONFIGURATION MISMATCH |
| B2206-00 | CURRENT VIN MISSING / MISMATCH |
| B22A9-00 | B22A9-00 - ECU INTERNAL PERFORMANCE |
| B23C4-12 | B23C4-12 - SIDE CAMERA-CIRCUIT SHORT TO BATTERY |
| B23C4-14 | B23C4-14 - SIDE CAMERA-CIRCUIT SHORT TO GROUND OR OPEN |
| B23C5-12 | B23C5-12 - FRONT CAMERA-CIRCUIT SHORT TO BATTERY |
| B23C5-14 | B23C5-14 - FRONT CAMERA-CIRCUIT SHORT TO GROUND OR OPEN |
| C212A-16 | SYSTEM VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD |
| C212A-17 | SYSTEM VOLTAGE-CIRCUIT VOLTAGE ABOVE THRESHOLD |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U1066-00 | HIGH SPEED FD-CAN8 COMMUNICATION BUS PERFORMANCE |
Factory Service Tools
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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.