The PCM monitors RAM areas and communication connections between microcontroller and output drivers and sets DTC P0606 if failure is detected.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Controller Malfunction Monitoring | 1. Poor Connector Connection 2. Unstable Power 3. Defected PCM | |
Enable Condition | Case 1 |
•
Heater PWM more than 1.56%
•
Sensor Operative readiness (Tip Temp. above 1184℉(640℃) or 18 sec. after dew-point exceeded)
•
Battery voltage higher than 11V and lower than 16V | |
Case 2 |
•
Engine speed higher than 32 RPM | ||
Case 3 |
•
Engine speed higher than 32 RPM
•
0.3 sec. delay after ignition on elased | ||
Case 4 |
•
Ignition Switch "ON" | ||
Threshold Value | Case 1 |
•
Error bit information from HW circuit | |
Case 2 |
•
Internal ECU Diagnostic | ||
Case 3 |
•
Mean value of boost voltage less than 30V higher than 75V | ||
Case 4 |
•
SPI bus communication error detected by ECU hardware | ||
Diagnostic Time | Case 1 |
•
5 sec. | |
Case 2 |
•
200 Rev. | ||
Case 3 |
•
3 sec. | ||
Case 4 |
•
1.5 sec. | ||
MIL ON Condition |
•
2 Driving Cycle | ||
