Test Point 15

Test point 15

Undervoltage DTC 4802

Control module supply voltage too low (less than 9.5 V).

Normally, this fault occurs only when the engine is started in combination with a discharged battery.

1. Pull off the control module connector and measure the voltage between PIN 15 (plus) and PIN 19 (ground).
Nominal value: Vehicle voltage.
2. Check wiring and ground point in combination with the wiring diagram.