Signal Description, Phone Module (PHM), Later Version

Signal specification

General
All the values given below are between the respective terminal in column 1 and terminal #C1-6 in column 2 (power ground) unless otherwise stated in parenthesis after the table entry.

Note! It is important to connect the breakout box and check the ground terminals before taking readings.

There may be several connections and connectors between the control module and components. For more information about these, see relevant section in Wiring diagram.