Indicator Lamp
- Indicator lamp should light for 4.5 seconds when coolant is below 104°F (40°C) and for .5 second when coolant is above this temperature. If not, check 15A fuse and indicator bulb. Repair or replace as necessary.
- If fuse and bulb are okay, check for battery voltage at terminal 7 (Black/White wire) of pre-heating timer. If voltage is not present, repair wiring. If present, replace pre-heating timer.