JCB JS-Excavator’s Fault Codes Full List

The JCB JS-Excavator’s Fault Codes Full List is an invaluable resource for operators and technicians, providing a complete overview of diagnostic trouble codes (DTCs) specific to JS series excavators. This detailed list helps pinpoint issues related to the machine’s engine, hydraulics, electrical system, and other critical components. By understanding these fault codes, users can quickly diagnose problems, streamline repairs, and enhance the operational efficiency of their excavators, reducing downtime and maintenance costs. Whether you’re performing routine checks or addressing major faults, this list is a must-have for maintaining optimal machine performance.

Error Codes	Error String	Description
101	CRANK	A crank signal was not detected by the ECU1.
102	FUEL	The fuel sensor is open-circuit
103	EN TMP	The engine temperature sensor is open-circuited.
104	HYD TMP	The hydraulic temperature sensor is open-circuited.
105	SET PT	The throttle set potentiometer is open-circuited.
106	SENS PT	The throttle sense potentiometer is open-circuited.
107	OIL SW	The oil pressure switch is reporting oil pressure is present when the engine is not running.
108	FLYWHEEL	The flywheel sensor is reporting an engine speed even though the engine is not running.
109	ALT	The alternator is reporting a voltage even when the engine is not running.
110	THR SOL	The throttle solenoid is open-circuited. This can only be detected when the engine is not running.
111	BOOM SP	The boom lower speed regulation output is open-circuited.
113	MAX FLW	The max flow solenoid is open-circuited. For JS200W machines, this error can only be detected when theengine is not running due to the fact that this is a proportional valve on these machines.
115	BOOM	The boom priority solenoid is open-circuited.
116	FL PMP	The refuel pump output is open-circuited.
117	HORN	The horn output is open-circuited.
118	HYD PMP	The hydraulic pump is open-circuited. Because this is a proportional valve, this error can only be detectedwhen the engine is not running.
119	SLW LCK	The slew lock solenoid is open-circuited.
120	HYD FAN	The hydraulic fan output is open-circuited. This can only be detected when the engine is not running.
121	SLW BRK	The slew brake solenoid is open-circuited.
122	SLW ST	The slew shut off solenoid is open-circuited.
127	TL CHNG	The travel change solenoid is open-circuited.
128	WASHER	The washer motor is open-circuited.
129	DOZER	The dozer solenoid is open-circuited.
130	GRB CW	The grab/rotate clockwise solenoid is open-circuited.
131	GRB CCW	The grab/rotate counter-clockwise solenoid is open-circuited.
132	LW FLOW	The low flow solenoid is open-circuited.
133	ISOL	The hydraulic isolator solenoid is open-circuited.
135	2 STAGE	The 2^nd stage relief solenoid is open-circuited.
136	QK HTCH	The quick hitch solenoid is open-circuited.
138	HAMMER	The hammer solenoid is open-circuited.
139	CUSHION	The hard/soft cushion solenoid is open-circuited.
142	ENG SD	The engine shutdown output is open-circuited.
143	GLW PLG	The glow plugs output is open-circuited.
156	TL FLW3	The travel flow 3 solenoid is open-circuited.
157	TL FLW2	The travel flow 2 solenoid is open-circuited.
158	GR CHNG	The M2 or gear change solenoid is open-circuited.
159	BRKE LT	The brake light output is open-circuited.
160	AXLE LK	The axle lock solenoid is open-circuited.
161	STAB UP	The stabilizer up (Rear Right on Auto’s) solenoid is open-circuited.
162	STAB DN	The stabilizer down (Front Left / Front Dozer on Auto’s) solenoid is open-circuited.
163	STAB LH	The stabilizer left (Rear Left / Rear Dozer on Auto’s) solenoid is open-circuited.
164	STAB RH	The stabilizer right (Front Right on Auto’s) solenoid is open-circuited.
165	CRUISE	The cruise control solenoid is open-circuited.
166	DIG ISL	The dig end isolation solenoid is open-circuited.
167	PRK BK	The M1 or park brake solenoid is open-circuited.
168	DRV ISL	The drive isolate solenoid is open-circuited.
202	FUEL	The fuel level sensor is short-circuited.
203	EN TMP	The engine temperature sensor is short-circuited.
204	HYD TMP	The hydraulic temperature sensor is short-circuited.
205	SET PT	The throttle set potentiometer is short-circuited.
206	SENS PT	The throttle sense potentiometer is short-circuited.
210	THR SOL	The throttle solenoid is short-circuited. This can only be detected when the engine is not running.
211	BOOM SP	The boom lower speed regulation output is short-circuited.
212	INT LT	The interior light is short-circuited.
213	MAX FLW	The max flow solenoid is short-circuited. For JS200W machines, this error can only be detected when theengine is not running due to the fact that this is a proportional valve on these machines.
214	BEACON	The beacon output is short-circuited.
215	BOOM PR	The boom priority solenoid is short-circuited.
216	FL PMP	The refuel pump solenoid is short-circuited.