Ram B1500, B2500, B3500, 1999-2003

5.2L V8 VIN Y Std 3

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Trouble Code: P0403



EGR Solenoid Circuit

Possible Causes:



EGR solenoid ground circuit is open
 
EGR solenoid control circuit is open or shorted to ground or to voltage
 
EGR solenoid power circuit is open
 
EGR solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0404



EGR Position Sensor Signal Performance

Possible Causes:



EGR Sensor signal circuit is open or shorted to ground
 
EGR Sensor 5v supply circuit is open or has high resistance
 
EGR Sensor ground circuit is open
 
EGR solenoid control circuit has a problem
 
EGR valve actuator loose, sticking, blocked or improperly grounded
 
EGR Sensor is damaged or has failed
 
Intermittent condition
 
PCM has failed
 

Trouble Code: P0405



EGR Position Sensor Circuit Low Input

Possible Causes:



EGR Sensor signal circuit is shorted to ground or open
 
EGR Sensor VREF (5v) circuit is open or shorted to ground
 
EGR Sensor is damaged (shorted internally) or it has failed
 
EGR position internal failure
 
PCM has failed
 

Trouble Code: P0406



EGR Position Sensor Circuit High Input

Possible Causes:



Intermittent condition
 
EGR Sensor signal is shorted to VREF (5v) supply circuit or to battery voltage
 
EGR Sensor ground circuit is open
 
EGR Sensor signal circuit is open
 
EGR Sensor is damaged (it may have an internal open circuit)
 
EGR solenoid failure
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks in at the exhaust manifold or exhaust pipes
 
Base engine problems (high coolant or engine oil consumption)
 
Catalytic converter damaged or has failed
 
Front O2 older (aged) than the rear O2 (O2 is lazy)
 

Trouble Code: P0432



Catalyst Efficiency Fault (Bank 2)

Possible Causes:



Air leaks in at the exhaust manifold or exhaust pipes
 
Base engine problems (high coolant or engine oil consumption)
 
Catalytic converter damaged or has failed
 
Front O2 older (aged) than the rear O2 (O2 is lazy)
 

Trouble Code: P0441



EVAP Purge Flow Monitor Fault

Possible Causes:



EVAP purge solenoid vacuum line loose, leaking or restricted
 
EVAP purge solenoid stuck leaking, stuck open or stuck closed
 
EVAP purge vacuum line to canister leaking or disconnected
 
EVAP canister leaking, damaged or has failed
 

Trouble Code: P0442



EVAP System Small Leak Detected

Possible Causes:



EVAP fuel tank or canister vapor hoses leaking or damaged
 
EVAP system component leaking, damaged or has failed
 
Fuel tank cap is loose, or the cap release pressure is incorrect
 
Leak detection pump damaged or leaking
 

Trouble Code: P0443



EVAP Purge Solenoid Circuit Fault

Possible Causes:



EVAP purge solenoid control circuit open or shorted to ground
 
EVAP purge solenoid power circuit open
 
EVAP purge solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0455



EVAP Large Leak (0.80") Detected

Possible Causes:



EVAP fuel tank or canister vapor hoses leaking or damaged
 
EVAP system component leaking, fuel cap loose or missing
 
Leak detection pump damaged or leaking
 

Trouble Code: P0456



EVAP Small Leak (0.020") Detected

Possible Causes:



EVAP fuel tank or canister vapor hoses leaking or damaged
 
EVAP system component leaking, fuel cap loose or missing
 
Leak detection pump damaged or leaking
 

Trouble Code: P0460



Fuel Level Sending No Change Over Miles

Possible Causes:



Fuel level sending unit signal circuit open or shorted to ground
 
Fuel level sending unit ground circuit is open
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 

Trouble Code: P0462



Fuel Level Sensing Unit Low Input

Possible Causes:



Fuel level sending unit signal circuit shorted to Sensor ground
 
Fuel level sending unit signal circuit shorted to chassis ground
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
BCM or PCM has failed
 

Trouble Code: P0463



Fuel Level Sending Unit High Input

Possible Causes:



Fuel level sending unit signal circuit shorted to Sensor or chassis ground
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
BCM or PCM has failed
 

Trouble Code: P0480



Low Speed (No. 1) Fan Relay Control Circuit

Possible Causes:



LFAN relay power circuit is open from the relay to fused power
 
LFAN relay control circuit is open or shorted to chassis ground
 
LFAN relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P0481



High Speed (No. 2) Fan Relay Control Circuit

Possible Causes:



HFAN relay power circuit is open from the relay to fused power
 
HFAN relay control circuit is open or shorted to chassis ground
 
Fan relay(s) failed
 
PCM has failed.
 

Trouble Code: P0498



NVLD Canister Vent Solenoid Circuit Low

Possible Causes:



NVLD canister vent solenoid control circuit is shorted to ground
 
NVLD canister vent solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0499



NVLD Canister Vent Solenoid Circuit High

Possible Causes:



NVLD canister vent solenoid control circuit is open or is shorted to power
 
NVLD canister vent solenoid ground circuit is open
 
NVLD canister vent solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Fault

Possible Causes:



VSS or OSS signal circuit to the PCM is open or shorted to ground
 
VSS or OSS power circuit (8v) is open or shorted to ground
 
VSS or OSS ground circuit to the PCM is open
 
Speedometer pinion or the VSS is damaged or has failed
 

Trouble Code: P0501



Vehicle Speed Sensor Performance

Possible Causes:



Check for any ABS/RWAL or TCM codes related to the VSS
 
VSS connector is damaged, open or it is shorted
 
VSS signal is open, shorted to ground or shorted to power
 
Incorrect tire circumference
 
ABS/RWAL controller, BCM, ECM, TCM or PCM has failed
 

Trouble Code: P0505



Idle Air Control Motor Circuit

Possible Causes:



Stepper motor Coil No. 1, 2, 3 or 4 circuit open or shorted to ground
 
Stepper motor coil circuit(s) shorted to system power (B+)
 
Stepper motor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0507



Idle Speed High Performance

Possible Causes:



Idle air control passage is clogged or dirty (clean and retest)
 
Throttle body or linkage is binding, damaged or sticking
 
Vacuum leaks in the engine or PCV system components
 
Intermittent condition
 
PCM has failed
 

Trouble Code: P0508



Idle Air Control Motor Sense Circuit Low Input

Possible Causes:



IAC motor driver circuit is open or shorted to ground
 
IAC motor sense circuit is open or shorted to ground
 
IAC motor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0509



Idle Air Control Motor Circuit High

Possible Causes:



IAC motor driver circuit is shorted to power
 
IAC motor sense circuit is shorted to power
 
IAC motor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0513



Invalid SKIM Key Detected

Possible Causes:



Incorrect VIN in the PCM
 
No communication between the PCM and the SKIM
 
SKIM trouble codes present (check for any SKIM codes)
 
Valid SKIM key not present
 
VIN not programmed into the PCM
 
PCM has failed
 

Trouble Code: P0522



Engine Oil Pressure Sensor Rationality

Possible Causes:



Oil pressure Sensor signal circuit is open
 
Oil pressure Sensor signal circuit is shorted to ground
 
Oil pressure Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0523



Engine Oil Pressure Sensor Rationality

Possible Causes:



Oil pressure Sensor signal circuit is open
 
Oil pressure Sensor signal circuit is shorted to ground
 
Oil pressure Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0545



Air Conditioning Clutch Circuit Failure

Possible Causes:



A/C clutch control circuit is open between the clutch and PCM
 
A/C clutch control circuit is shorted to ground
 
A/C clutch power circuit is open
 
A/C clutch or PCM has failed
 

Trouble Code: P0551



Power Steering Pressure Switch Circuit Failure

Possible Causes:



PSPS sense circuit is shorted to ground
 
PSPS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0562



Battery Sense Circuit Low Input

Possible Causes:



Battery sense circuit has a high resistance condition
 
Generator ground circuit has a high resistance condition
 
Generator field ground circuit is open
 
Generator field control circuit is open or shorted to ground
 
Generator is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0563



Battery Sense Circuit High Input

Possible Causes:



Generator field control circuit is shorted to system power (B+)
 
Generator is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0600



PCM Internal Failure, No SPI Communications

Possible Causes:



Turn the key off. Remove the PCM connector(s) and inspect the wiring harness connector pins and PCM pins for damaged, bent or missing pins. If any problems are located, make the repair and then perform the PCM Reset function. If this code resets after the repairs are made, the PCM has failed.
 
PCM needs to be replaced, and then reprogrammed
 

Trouble Code: P0601



PCM Random Access Memory Failure, Self-Test Failed

Possible Causes:



PCM needs to be replaced, and then reprogrammed
 

Trouble Code: P0604



TCM Random Access Memory Failure, Self-Test Failed

Possible Causes:



TCM needs to be replaced, and then reprogrammed
 

Trouble Code: P0605



TCM Random Access Memory Failure, Self-Test Failed

Possible Causes:



TCM needs to be replaced, and then reprogrammed
 

Trouble Code: P0622



Generator Field Control Circuit Malfunction

Possible Causes:



Generator field control circuit is open or is shorted to ground
 
Generator field control circuit is shorted to system power (B+)
 
Generator field ground circuit is open
 
Generator is damaged or PCM has failed
 
PCM has failed
 

Trouble Code: P0700



Automatic Transmission Control System Malfunction

Possible Causes:



The presence of this code means the TCM detected a problem
 
TCM related Sensor has solenoid is damaged or has failed
 
This code is for information only - check for other TCM codes
 
TCM or PCM has failed
 

Trouble Code: P0703



A/T Brake Switch Sense Circuit Malfunction

Possible Causes:



Brake switch signal circuit or the switch ground circuit is open
 
Brake switch is damaged, out of adjustment or has failed
 
PCM has failed
 

Trouble Code: P0705



A/T Check Shifter Signal Circuit Malfunction

Possible Causes:



TR1, T3, T41 or T42 sense circuit is open
 
TR1, T3, T41 or T42 sense circuit is shorted to ground
 
TR1, T3, T41 or T42 Sensor circuit is shorted to system power
 
Transmission Range Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0711



A/T Transmission Fluid Temperature Sensor Signal - No Rise After Startup

Possible Causes:



TFT Sensor signal has an intermittent high resistance condition
 
TFT Sensor is damaged, skewed or has drifted out of range
 
PCM has failed
 

 
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