SC 430 V8-4.3L (3UZ-FE) (2003)
13. REMOVE MAYDAY ECU ASSY
a. Disconnect the connectors and clamps.
NOTE:
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Replace connector bracket A with a new one.
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Be sure not to remove connector B.
b. Remove the 4 nuts and mayday ECU assembly.
NOTE: The mayday ECU assembly should be replaced together with the telephone transceiver assembly.
14. INSTALL MAYDAY ECU ASSY
a. Install the mayday ECU assembly with the 4 nuts.
NOTE: Make sure that the last 4 digits of serial No. of the mayday ECU assembly correspond to those of the telephone transceiver assembly.
b. Connect the connectors and clamps.