Possible Causes
- GOOD TRIP EQUAL TO ZERO
- (K2) ECT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
- ECT SENSOR VOLTAGE BELOW 1.0 VOLT
- (K2) ECT SIGNAL CIRCUIT OPEN
- (K4) SENSOR GROUND CIRCUIT OPEN
- (K2) ECT SIGNAL CIRCUIT SHORTED TO GROUND
- (K2) ECT SIGNAL SHORTED TO (K4) SENSOR GROUND
- PCM HIGH
- PCM LOW