3月 2026向けbus-manuals.jimdofree.comウェブサイト分析

7.1 does not light The program limiter button on the dashboard. The speed limit on the driver's request does not work or the bus continuously moves at a limited speed. Status parameters using the diagnostic tool: check the button activation. If the signal does not come to the control set-up, check with the multimeter that the buttons between terminals 2 and 3 are correctly connected. If the button is OK, check the cable intact between pin 3 of the button and the control unit (pin B26) through the bushing B, pin 22. 7.2 OFF (for a single-stage valve) the CAN line is lit (for a two-stage valve). Incorrect functioning of the immobilizer. Check the electrical wiring, connectors and line impedance (120 ohms). The immobilizer is blocked or does not allow the engine to start. 7.5 does not light Engine brake warning lamp: short to ground or open circuit. The control lamp sometimes does not light up after the ignition key is turned on or remains lit after the ignition key is turned off. Active diagnostics using the diagnostic tool. If the test lamp does not work during active diagnostics, check the bulb's integrity between terminals 2 and 5 of the module. If the light bulb is OK, check the cable between the light bulb terminal 5 and the control unit (pin B47) through the bushing B, pin 21. 7.6 does not light Engine low pressure warning lamp: short to ground or open circuit. The control lamp sometimes does not light up after the ignition key is turned on or remains lit after the ignition key is turned off. Active diagnostics using a diagnostic tool. If the test lamp does not operate during active diagnostics, check the bulb's integrity between pins 2 and 4 of the pointer. If the light bulb is OK, check the cable between pin 2 and the control unit (pin B63) through the bushing B, pin 17. 7.7 OFF Lubrication signal of engine lubricant: short to ground or open circuit. Wrong declaration of engine lubricant pressure. Active diagnostics using the diagnostic tool. Check the cable b