what does the codes P0406 & U1120 mean
Jun 24, 2009 at 6:04 PM
2004 Dodge Durango emission codes
2004 DODGE DURANGO
JAYSHON
- MEMBER
- 1 POST
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BMRFIXIT
- ✓ASE Certified Mechanic
- 19,053 POSTS
U1120 LOST WHEEL DISTANCE MESSAGE
The PCM doesn't receive a wheel distance messagel from the Anti-lock brake Module over the CAN C bus.
Possible Causes
CAN C BUS CIRCUIT OPEN OR SHORTED
ANTI-LOCK BRAKE MODULE
PCM
P0406-EGR POSITION SENSOR CIRCUIT HIGH
When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
Set Condition:
EGR position sensor signal is greater than 4.89. One trip Fault.
Possible Causes
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO (F856) 5-VOLT SUPPLY CIRCUIT
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
EGR SOLENOID ASSEMBLY
PCM
good luck
The PCM doesn't receive a wheel distance messagel from the Anti-lock brake Module over the CAN C bus.
Possible Causes
CAN C BUS CIRCUIT OPEN OR SHORTED
ANTI-LOCK BRAKE MODULE
PCM
P0406-EGR POSITION SENSOR CIRCUIT HIGH
When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
Set Condition:
EGR position sensor signal is greater than 4.89. One trip Fault.
Possible Causes
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO (F856) 5-VOLT SUPPLY CIRCUIT
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K34) EGR POSITION SENSOR SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
EGR SOLENOID ASSEMBLY
PCM
good luck
Jun 26, 2009 at 6:39 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.