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P1500

Symptom: Since incorrect battery voltage usually causes trouble in other system functions, these diagnostic trouble codes are for the most part generated together with other diagnostic trouble codes.

P1500

Battery voltage too high or too low



Fault symptom

Since incorrect battery voltage usually causes trouble in other system functions, these diagnostic trouble codes are for the most part generated together with other diagnostic trouble codes.

Condition

Voltage higher than >16 V or lower than <10 V for more than 60 seconds after starting.

Diagnostic procedure


1. Activate the ISAT command "BATTERY VOLTAGE" in the "READ FUNCTIONS" menu.

Check the battery and charging system and rectify any faults.

2. Check that the MOTRONIC control module supply voltage is correct on pins 18, 27 and 37, and that pins 2, 14, 19 and 24 are properly connected to a good ground.