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Home >> Lexus >> 2009 >> GX 470 V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Emergency Contact Module >> Service Precautions
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Emergency Contact Module: Service Precautions








CELLULAR COMMUNICATION: LEXUS LINK SYSTEM: PRECAUTION

PRECAUTION

1. INSPECTION PRECAUTION FOR LEXUS LINK SYSTEM
(a) The GPS antenna assembly for the LEXUS Link system is installed under the instrument panel. Metal objects on the instrument panel may affect the reception of the GPS antenna assembly.
(b) When the mayday battery runs low, the mayday ECU assembly sets DTC 6-1. Perform troubleshooting according to the malfunction indicated by 6-1.
2. WHEN REPLACING MAYDAY ECU ASSEMBLY
(a) If replacement of the ECU is necessary, replace the mayday battery (backup battery) together with the ECU. After the replacement, register the ECU Programming and Relearning.
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