7 – 16 Repair manual SWE100, 120, 120L, 120S, 140, 140L, 200D © BT
Troubleshooting
Error codes
T code Valid from serial no. Date Order no.
841×842×843 6061850- 2012-08-30 258946-120
3.539
Transistor regulator stops all functions. The transistor regulator detects that the
battery voltage is not in the interval 18
V - 28.8 V.
Check:
• the wiring harness between the
battery and transistor regulator.
• the battery.
3.540
Transistor regulator stops all functions. The transistor regulator output to the
main contactor has short-circuited.
Check:
• connections and wiring harness
• the main contactor.
3.541
Transistor regulator stops all functions. The transistor regulator output to the
parking brake is short-circuited.
Check:
• connections and wiring harness
• the parking brake.
3.542
Transistor regulator stops all functions. One of the transistor regulator's circuits
to the main contactor, parking brake or
lowering valve is short-circuited to
+24
V at start-up.
Check
• connections and wiring harness
• main contactor
• parking brake
• the lowering valve.
3.560
Transistor regulator stops all functions. The transistor regulator output to the
main contactor has short-circuited.
Check:
• connections and wiring harness
• the main contactor.
3.561
Transistor regulator stops all functions. The circuit between the transistor
regulator and the main contactor coil is
open.
Check:
• connections and wiring harness
• the main contactor.
Code Event Possible cause
Action
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