UAZ -374195 Operation Manual page 70

In case of faults caused by ignition failures (the engine malfunction
lamp starts flashing), to avoid the exhaust converter failure it is
necessary to reduce the engine crankshaft rotation speed down to
2,500 rpm (the motor vehicle speed shall not exceed 50 km/h) and
to drive to a service station. The alarm flashes are oN every time
the converter's allowable temperature is exceeded. Here, one or two
engine injectors can be switched off.
The engine operation is only allowed after the fault is eliminated.
In the operating mode, when the ignition is turned on and the engine
is off, the lamp is on continuously until the engine is on. If the lamp does
not go off after the engine start, that means that the diagnosis subsystem
has determined faults in electric circuits of the control system.
If the diagnostic lamp does not go off after the ignition is on or lit
when the engine is running, that means that the engine or the system
needs servicing as soon as possible.
The Fault Code Memory can be cleared only by a scan-tester.
If the rechargeable battery switches off, the control unit self-learning
parameters are not lost and can be cleared using a scan-tester.
When the fault codes are cleared, the controller accumulated adaptive
data (the controller self-learning parameters) are cleared automatically.
Diagnostic lamp Operation
Clearing Fault Codes
70