P0473 is set when measured Differential pressure is above 500 hPa - the upper limiting value - for more than 1 sec.. This code is due to 1) short beween power and signal circuit or 2) short to battery in signal circuit or 3) short to ground in ground circuit.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage Monitoring | 1. DPS Wiring 2. DPS component | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold value |
•
When differential pressure is above 500 hPa | |||
Diagnosis Time |
•
1 sec. | |||
Fail Safe | Fuel cut | NO |
•
Engine check lamp blinks.
•
Differential pressure considered as 10hPa. | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | BLINK | |||
