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 MANUALSTOYOTA2011LANDCRUISER V8-5.7L (3UR-FE)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTEMERGENCY CONTACT MODULETESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESDCM OPERATION HISTORY
2011 Toyota Landcruiser V8-5.7L (3UR-FE)
DCM Operation History
2011 Toyota Landcruiser V8-5.7L (3UR-FE)SECTION DCM Operation History
CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DCM OPERATION HISTORY
1. DCM OPERATION HISTORY
This function shows the telematics network status when the DCM (Telematics Transceiver) was operated. Use this when no DTC is present but this telematics system was unable to connect to the call center. This symptom may occur if cell phone signal strength is very weak.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Choose "Telematics" from the System Selection Menu, and then click "Utility".
(e) Click "DCM Operation History" on the Utility Selection Menu.
(f) Follow the instructions on the Techstream.
HINT
* "Occurrence time" indicates date of the DCM (Telematics Transceiver) operation.
* "Communication area" indicates which communication network was used: Network (Version) or Roaming.
* "Signal strength" indicates the strength of the cellular signal received by the vehicle: 0 (no signal) to 5 (strong).
* "Communication" indicates connecting to the call center: Success or Fail.
NOTICE:
*: A failure can also be caused by manually ending an SOS call, and does not necessarily indicate a device malfunction.
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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.