2010 Arctic Cat Prowler XT/XTX/XTZ ATV Service Manual, Page 165Get this manual
The ECU is rarely the cause for electrical problems; however, if the ECU is suspected, substitute another ECU to verify the suspected one is defectiveThis EFI system has built-in feature that will only allow an ECU of the same part number to be used in this modelDo not attempt to substitute an ECU from different model as the system will not allow it to startError codes can be cleared by following the procedures located in the ECU Error Codes sub-section in this section NOTE: If battery voltage is not shown in any test, inspect the LIGHTS fuse on the power distribution module, headlight switch, ignition switch, switch connectors, or wiring harness
Taillight-Brakelight
VOLTAGE (Taillight)