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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HOMESERVICE MANUALSJEEP2010GRAND CHEROKEE LAREDO, 5.7 T, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSINTRUSION TRANSCEIVER MODULE (ITM) - ELECTRICAL DIAGNOSTICS
2010 Jeep Grand Cherokee Laredo, 5.7 T, 4WD
Intrusion Transceiver Module (ITM) - Electrical Diagnostics
2010 Jeep Grand Cherokee Laredo, 5.7 T, 4WDSECTION Intrusion Transceiver Module (ITM) - Electrical Diagnostics
- Diagnostic Code Index
- DTC Troubleshooting
- DTC B1A37: Security Transmitter Sensor Circuit Low
- DTC B1A38: Security Transmitter Sensor Circuit High
- DTC B1A3A: Security Receiver Sensor Circuit Low
- DTC B1A3B: Security Receiver Sensor Circuit High
- DTC B1A3C: Internal Siren Battery
- DTC B1A3D: Siren Battery Tamper/Loss Of Power Supply
- DTC B1A3E: Siren/ITM Mismatch
- DTC B1A3F: ITM Arming Sequence Performance
- DTC B1A41: Security Transmitter Sensor Circuit Open
- DTC B1A42: Security Transmitter Sensor Circuit Shorted Together
- DTC B1A43: Security Transmitter Sensor Return Circuit Low
- DTC B1A44: Security Receiver Sensor Circuit Open
- DTC B1A45: Security Receiver Sensor Circuit Shorted Together
- DTC B1A46: Security Receiver Sensor Return Circuit Low
- DTC B1A47: Security Transmitter/Receiver Sensor Return Circuit High
- DTC B2206: Current VIN Missing/Mismatch
- DTC B222A: Vehicle Line Mismatch
- DTC B223C: Intrusion Transceiver Module Internal
- DTC U0019: Can B Bus
- DTC U0151: Lost Communication With Occupant Restraint Controller
- DTC U0155: Lost Communication With Cluster/CCN
- DTC U110D: Lost Communication With Security Siren
- DTC U1416: Implausible Security Siren Signal Received
RENDER: 1.0x
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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.