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 EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONPINOUT VALUES AND DIAGNOSTIC PARAMETERSSMART KEY SYSTEM (FOR ENTRY FUNCTION)
2011 Toyota Landcruiser V8-5.7L (3UR-FE)
Smart Key System (for Entry Function)
2011 Toyota Landcruiser V8-5.7L (3UR-FE)SECTION Smart Key System (for Entry Function)
THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): TERMINALS OF ECU
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the E29 and E30 ECU connectors.
(b) Measure the resistance and voltage of the wire harness side connector.
* If the result is not as specified, the wire harness side may have a malfunction.
(c) Reconnect the E29 and E30 ECU connectors.
(d) Measure the voltage of the connector.
* If the result is not as specified, the ECU may have a malfunction.
2. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
(a) Disconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.
(b) Measure the resistance and voltage of the wire harness side connectors.
* If the result is not as specified, the wire harness side may have a malfunction.
(c) Reconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.
(d) Measure the voltage of the connectors.
If the result is not as specified, the ECU may have a malfunction.
(e) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
(f) Using an oscilloscope, check waveform 2.
Waveform 2 (Reference)
(g) Using an oscilloscope, check waveform 3.
Waveform 3 (Reference)
(h) Using an oscilloscope, check waveform 4.
Waveform 4 (Reference)
(i) Using an oscilloscope, check waveform 5.
Waveform 5 (Reference)
(j) Using an oscilloscope, check waveform 6.
Waveform 6 (Reference)
(k) Using an oscilloscope, check waveform 7.
Waveform 7 (Reference)
(l) Using an oscilloscope, check waveform 8.
Waveform 8 (Reference)
(m) Using an oscilloscope, check waveform 9.
Waveform 9 (Reference)
(n) Using an oscilloscope, check waveform 10.
Waveform 10 (Reference)
(o) Using an oscilloscope, check waveform 11.
Waveform 11 (Reference)
(p) Using an oscilloscope, check waveform 12.
Waveform 12 (Reference)
RENDER: 1.0x
NO RELATED
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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.