184000631 - Z83 SUPPLY VOLTAGE ERROR

The diagnostic equipment signals the following error: "C1800 - Supply voltage"
This error is signalled if the control unit detects a battery voltage that is too high or too low
Results of the tests
1POWER SUPPLY CIRCUIT CHECKAll OKProblems encounteredOperation
Check that the supply voltage at the battery terminals is correct.Check the power supply wiring from the battery to the ABS control unit See E7020 ABS : there should be no drop in voltage between the battery and the control unitEnd of diagnosisBattery voltage not correctRecharge the battery, if necessary, replace it    Op. 5530B10 BATTERY - R+R
Drop in voltage in the wiringRenew the wiring, if necessary, replace the faulty components
2CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Delete the errors using the diagnostic equipment.Carry out the road test See Test    See Test 3340OA A.B.S. SYSTEM ACTUATION CHECKto ensure that the control unit checks whether there are any errors still present.Return to the workshop and check that the fault is no longer present using the diagnostic equipmentEnd of diagnosis.-