34. ARSC (AUTOMATIC RETARD SPEED CONTROL) 34.3TROUBLESHOOTING 34.3.1 WHEN A PROBELM OCCURS IN THE SYSTEM This system is equipped with a self-diagnostic function. If any problem occurs, a failure code is displayed by the controller LED under the assistant’s seat. *: See next page 5-46 No.
Failure code Details Remedy pattern* 1 0.1 Abnormality in power source 1 2 1.0 Disconnection, short circuit with ground, short circuit in engine speed sensor system 1 3 1.3 Disconnection, short circuit with ground, short circuit in transmission output shaft speed sensor system 1 4 1.5 Short circuit with ground in retarder oil temperature sensor system 1 5 1.7 Disconnection, short circuit with ground, short circuit in accelerator signal system 1 6 1.8 Disconnection, short circuit with ground in suspension pressure sensor (left) system 1 7 1.9 Disconnection, short circuit with ground in suspension pressure sensor (right) system 1 8 4.2 Disconnection, short circuit in exhaust brake signal system 2 9 4.3 Disconnection, short circuit in ARSC caution lamp system 1 10 4.4 Disconnection in READY lamp system 2 11 4.5 Disconnection, short circuit in central warning lamp system or buzzer system 2 12 5.2 Short circuit with ground in exhaust brake signal system 2 13 5.3 Short circuit with ground in ARSC caution lamp system 1 14 5.4 Short circuit with ground in READY lamp system 2 15 5.5 Short circuit with ground in central warning lamp system or buzzer system 2 16 6.0 Failure in engine speed sensor system 1 17 7.0 Disconnection, short circuit in speed display up output 2 18 7.1 Disconnection, short circuit in speed display down output 2 19 7.2 Disconnection, short circuit in speed display clear output 2 20 7.3 Short circuit with ground in speed display up output 2 21 7.4 Short circuit with ground in speed display down output 2 22 7.5 Short circuit with ground in speed display clear output 2 23 8.1 Short circuit with ground in pressure control valve system 1 24 8.3 Disconnection, short circuit in pressure control valve system 1 25 8.5 Failure in pressure control valve (retarder remains applied) or failure in pressure switch 1 system 1 26 8.7 Failure in pressure control valve (retarder has no effect) or failure in pressure switch 1 system 1 27 8.9 Short circuit with ground in pressure cracking valve 1 28 9.0 Disconnection, short circuit in pressure cracking valve 1 29 9.1 Failure in pressure cracking valve (remains open) or failure in pressure switch 2 system 1 30 9.2 Failure in pressure cracking valve (does not open) or failure in pressure switch 2 system 1 31 9.3 Disconnection, short circuit in system switch system 1 32 9.4 Short circuit with ground in system switch system 1 33 9.5 Disconnection, short circuit with ground in travel speed set switch system 1