BODY ELECTRICAL SYSTEM — Trip Computer BE-119 TEST TROUBLE B MPG indication always Zero. Trip reading increases or "ARRIVE" mode indicates " ......... " always. Is MPG indication always zero? No Replace DISPLAY CLUSTER. Yes Disconnect 14-terminal connector. ① With the ignition switch at ON position, does voltage between terminals f and GND of the 14-terminal connector fluctuate between 0 to 5V when vehicle is moved about 1 meter? (engine not running) No Yes Is there continuity speed sensor and wire harness? Replace DISPLAY CLUSTER. Yes No Replace Keyboard. Repair and replace speed sensor and wire harness. 1 14-terminal Connector of COMPUTER GND TOYOTA DC