Telematics Control Module (TCU-Everest) X18500 Connector End View
Pin Assignments At Connector X18500
| Pin | Type | Description/Signal type | Connection/Measuring notes |
|---|---|---|---|
| 1 | A | Positive input signal, microphone | Voice input Microphone |
| 2 | Not used | ||
| 3 | Not used | ||
| 4 | Not used | ||
| 5 | Not used | ||
| 6 | Not used | ||
| 7 | E | Left wheel speed signal | ABS/DSC Control Module |
| 8 | E | Right wheel speed signal | ABS/DSC Control Module |
| 9 | A | Telephone, internal | Eject box |
| 10 | A | Telephone, internal | Eject box |
| 11 | A | Telephone, internal | Eject box |
| 12 | Not used | ||
| 13 | Not used | ||
| 14 | Not used | ||
| 15 | E/A | I-bus signal line | I-bus splice Telephone connector |
| 16 | Not used | ||
| 17 | E | Terminal 30 voltage supply | Fuse F74 |
| 18 | E | Terminal 30 voltage supply | Fuse F74 |
| 19 | A | Negative input signal, microphone | Voice input Microphone |
| 20 | Not used | ||
| 21 | M | Shield | Shield Microphone |
| 22 | Not used | ||
| 23 | Not used | ||
| 24 | Not used | ||
| 25 | Not used | ||
| 26 | E | Input signal, emergency call | Mayday switch |
| 27 | Not used | ||
| 28 | Not used | ||
| 29 | A | Telephone, internal | Eject box |
| 30 | A | Telephone, internal | Eject box |
| 31 | E | Input signal, emergency call | Mayday switch |
| 32 | A | Telephone, internal | Eject box |
| 33 | A | Telephone ON signal | Voice input Amplifier Radio |
| 33 | A | Telephone ON signal | Compensator |
| 35 | E | Voltage supply terminal R | K3 Unloader relay, terminal R |
| 36 | M | Ground | Ground splice |
| 37 | A | Front loudspeaker voltage control | Voice input Amplifier Front loudspeaker |
| 38 | A | Front loudspeaker ground control | Voice input Amplifier Front loudspeaker |
| 39 | M | Shield | Eject box |
| 40 | Not used | ||
| 41 | Not used | ||
| 42 | Not used | ||
| 43 | Not used | ||
| 44 | Not used | ||
| 45 | Not used | ||
| 46 | Not used | ||
| 47 | Not used | ||
| 48 | Not used | ||
| 49 | Not used | ||
| 50 | A | Activation LED | Mayday switch |
| 51 | A | Telephone mute signal | Voice input Radio |
| 52 | E | Nighttime illumination signal | Terminal 58g splice |
| 53 | Not used | ||
| 54 | M | Ground | Ground splice |