2006 DODGE RAM SRT-10 check oil

2.(G6) SIGNAL CIRCUIT OPEN
Disconnect the ECM harness connectors.
Check connectors - Clean/repair as necessary.
Measure the resistance of the oil pressure switch (G6) signal circuit
between the oil pressure switch harness connector and the ECM har-
ness connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 3
No>>
Repair the open Oil pressure (G6) signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
3.ECM
Reconnect the ECM harness connectors.
Turn the ignition on.
Measure the voltage between the oil pressure (G6) signal circuit at the
oil pressure switch harness connector and ground.
Is the voltage between 4.5 and 5.5 volts?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

When Monitored:
While the engine is running.
Set Condition:
The oil pressure detected by the ECM is less than a calibrated value.
Possible Causes
LOW OIL LEVEL
(G6) SIGNAL CIRCUIT SHORT TO GROUND
OIL PRESSURE SWITCH
INTERNAL ENGINE DAMAGE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.LOW OIL LEVEL
Check the engine oil level.
Is the engine oil in the safe operating range?
Ye s>>
Go To 2
No>>
Repair any condition that may cause the oil level to be above or below the safe operating range.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
2.SIGNAL CIRCUIT SHORT TO GROUND
With the scan tool, erase DTCs.
Turn the ignition off.
Disconnect the oil pressure switch harness connector.
Turntheignitiononfor1minute.
Did DTC P0521 set?
Ye s>>
Go To 3
No>>
Repair the (G6) signal circuit shorted to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
3.OIL PRESSURE SWITCH
Measure the engine oil pressure with a mechanical gauge.
Is the oil pressure within the acceptable operating range?
Ye s>>
Replace the oil pressure switch.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Repair internal engine damage.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

P0355-IGNITION COIL #5 PRIMARY
CIRCUIT................................. 1948
P0420-1/1 CATALYTIC CONVERTER
EFFICIENCY............................. 1952
P0432-2/1 CATALYTIC CONVERTER
EFFICIENCY............................. 1955
P0441-EVAP PURGE FLOW MONITOR . . . . . 1958
P0442-EVAP LEAK MONITOR MEDIUM
(0.040) LEAK DETECTED.................. 1962
P0443-EVAP PURGE SOLENOID CIRCUIT . . 1968
P0455-EVAP LEAK MONITOR LARGE LEAK
DETECTED............................... 1972
P0460-FUEL LEVEL SENDING UNIT NO
CHANGE OVER MILES.................... 1978
P0462-FUEL LEVEL SENDING UNIT VOLTS
TOO LOW................................ 1979
P0463-FUEL LEVEL SENSOR 1 CIRCUIT
HIGH.................................... 1982
P0500-NO VEHICLE SPEED SIGNAL ....... 1986
P0505-IDLE AIR CONTROL MOTOR
CIRCUITS................................ 1989
P0513-INVALID SKREEM KEY ............. 1994
P0522-OIL PRESSURE CIRCUIT LOW ...... 1996
P0523-OIL PRESSURE CIRCUIT HIGH ..... 2000
P0601-PCM INTERNAL CONTROLLER
FAILURE................................. 2003
P0622-GENERATOR FIELD NOT
SWITCHING PROPERLY.................. 2004
P0645-A/C CLUTCH RELAY CIRCUIT . . ..... 2008
P0801-REVERSE GEAR LOCKOUT CIRCUIT
OPEN OR SHORTED...................... 2012
P1195-O2 SENSOR 1/1 SLOW DURING
CATALYST MONITOR..................... 2016
P1196-O2 SENSOR 2/1 SLOW DURING
CATALYST MONITOR..................... 2019
P126B-ASD CONTROL CIRCUIT 2 LOW .... 2022
P126C-ASD CONTROL CIRCUIT 2 HIGH .... 2026
P126D-ASD CONTROL CIRCUIT 2 OPEN . . . 2030
P126E-ASD CONTROL CIRCUIT
OVERCURRENT.......................... 2034
P1272-A/C CLUTCH CONTROL CIRCUIT 2
LOW..................................... 2038
P1273-A/C CLUTCH CONTROL CIRCUIT 2
HIGH.................................... 2041
P1274-A/C CLUTCH CONTROL CIRCUIT 2
OPEN.................................... 2045
P1275-A/C CLUTCH CONTROL CIRCUIT 2
OVERCURRENT.......................... 2049
P1277-STARTER CONTROL CIRCUIT 2 LOW
(TIPM)................................... 2052
P1278-STARTER CONTROL CIRCUIT 2
HIGH (TIPM).............................. 2055
P1279-STARTER CONTROL CIRCUIT 2
OPEN (TIPM)............................. 2058
P127A-STARTER CONTROL CIRCUIT 2
OVERCURRENT.......................... 2061
P127C-FUEL PUMP CONTROL CIRCUIT 2
LOW..................................... 2064P127D-FUEL PUMP CONTROL CIRCUIT 2
HIGH.................................... 2067
P127E-FUEL PUMP CONTROL CIRCUIT 2
OPEN (TIPM)............................. 2071
P0127F-FUEL PUMP CONTROL CIRCUIT 2
OVERCURRENT (TIPM)................... 2075
P1281-ENGINE IS COLD TOO LONG ....... 2078
P1282-FUEL PUMP/SYSTEM RELAY
CONTROL CIRCUIT....................... 2079
P1294-TARGET IDLE NOT REACHED ...... 2082
P1296-NO 5-VOLTS TO MAP SENSOR ..... 2085
P1297-NO CHANGE IN MAP FROM START
TO RUN.................................. 2089
P1388-AUTO SHUTDOWN RELAY CONTROL
CIRCUIT................................. 2094
P1389-NO ASD RELAY OUTPUT VOLTAGE
AT P C M.................................. 2097
P1391-INTERMITTENT LOSS OF CMP OR
CKP
..................................... 2100
P1398-MIS-FIRE ADAPTIVE NUMERATOR
AT L I M I T................................. 2104
P1486-EVAP LEAK MONITOR PINCHED
HOSE FOUND............................ 2106
P1492-AMBIENT/BATTERY TEMPERATURE
SENSOR VOLTAGE TOO HIGH............. 2110
P1493-AMBIENT/BATTERY TEMPERATURE
SENSOR VOLTAGE TOO LOW............. 2114
P1494-LEAK DETECTION PUMP SWITCH
OR MECHANICAL FAULT.................. 2117
P1495-LEAK DETECTION PUMP SOLENOID
CIRCUIT................................. 2121
P1499-HYDRAULIC FAN SOLENOID
CIRCUIT................................. 2126
P1594-CHARGING SYSTEM VOLTAGE TOO
HIGH.................................... 2130
P1598-A/C PRESSURE SENSOR VOLTAGE
TOO HIGH............................... 2133
P1599-A/C PRESSURE SENSOR VOLTAGE
TOO LOW................................ 2137
P1682-CHARGING SYSTEM VOLTAGE TOO
LOW..................................... 2141
P1687-NO CLUSTER BUS MESSAGE ...... 2146
P1695-BUS MESSAGE FROM BODY
CONTROL MODULE...................... 2148
P1696-PCM FAILURE EEPROM WRITE
DENIED.................................. 2151
*BRAKE SWITCH SENSE STATUS DOES
NOT CHANGE ON THE SCAN TOOL....... 2153
*CANNOT SHIFT INTO REVERSE .......... 2157
*CHECKING A/C SYSTEM OPERATION
WITH NO DTCS.......................... 2159
*CHECKING CHARGING SYSTEM
OPERATION WITH NO DTCS.............. 2163
*CHECKING RADIATOR FAN OPERATION . . 2167
*CHECKING THE PCM POWER AND
GROUNDS............................... 2169
B2277–CAN GATEWAY INTERNAL
(GATEWAY).............................. 2172
U0001–CAN C BUS CIRCUIT (GATEWAY) . . . 2172

When Monitored:
With ECT greater than 147°F, after reaching a vehicle speed of 10 mph, and the throttle remaining open (off
idle) for 2 minutes, bring the vehicle to a stop and allow the engine to idle with the transmission in DRIVE.
Set Condition:
The oxygen sensor signal voltage is switching from below 0.27 of a volt to above 0.62 of a volt and back fewer
times than required.
Possible Causes
EXHAUST LEAK
(K41) O2 1/1 SIGNAL CIRCUIT
(K900) SENSOR GROUND CIRCUIT
O2 SENSOR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.ACTIVE DTC
NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved sil-
icone, oil and coolant.
Ignition on, engine not running.
NOTE: After the repairs have been made, verify proper O2 Sensor operation.If all the O2 Sensor voltage
readings have not returned to normal, follow the diagnostic procedure forthe remaining O2 Sensors.
With a scan tool, read DTCs.
Is the DTC active at this time?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Symptom. (Refer to 9 - ENGINE - DIAGNOSIS AND TEST-
ING)
2.EXHAUST LEAK
Start the engine.
Inspect the exhaust system for leaks between the engine and the O2 Sensors.
Are there any exhaust leaks?
Ye s>>
Repair or replace the leaking exhaust parts as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3
3.(K41) O2 1/1 SIGNAL CIRCUIT VOLTAGE DROP
Turn the ignition off.
While backprobing, measure the voltage of the (K41) O2 Sensor 1/1 Signal circuit between the 1/1 O2 Sensor har-
ness connector and PCM harness connector.
NOTE: Make sure the voltmeter leads meet the terminals in the connector andthat there is good terminal to
wire connection and are connected for positive polarity.
Start the engine.

Theory of Operation
The downstream O2 Sensor is located in the exhaust path behind the catalytic converter, is monitored for proper
response to assure optimum catalytic converter efficiency. The downstream O2 response monitor is intended to
diagnose a downstream O2 sensor that is not moving or stuck in a voltage window and to insure accurate infor-
mation for catalyst monitor diagnosis.
When Monitored:
Start engine. Allow engine to idle. For 1st part of test, if limits are exceeded, test passes. If not, 2nd part of
test runs. amb/batt temp >44°F, Baro >22.13
H2O, battery >10.5 volts, MAP >11.79 & <18.15H2O, RPM
>1350 & <2200 and vss >50 and <65.
Set Condition:
The oxygen sensor signal voltage is switching from below 0.39 of a volt to above 0.58 of a volt and back fewer
times than required.
Possible Causes
EXHAUST LEAK
(K141) O2 1/2 SIGNAL CIRCUIT
(K900) SENSOR GROUND CIRCUIT
O2 SENSOR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.ACTIVE DTC
NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved sil-
icone, oil and coolant.
Ignition on, engine not running.
NOTE: After the repairs have been made, verify proper O2 Sensor operation.If all the O2 Sensor voltage
readings have not returned to normal, follow the diagnostic procedure forthe remaining O2 Sensors.
With a scan tool, read DTCs.
Is the DTC active at this time?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Symptom. (Refer to 9 - ENGINE - STANDARD PROCE-
DURE)
2.EXHAUST LEAK
Start the engine.
Inspect the exhaust system for leaks between the engine and the O2 Sensors.
Are there any exhaust leaks?
Ye s>>
Repair or replace the leaking exhaust parts as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3

When Monitored:
With ECT greater than 147°F, after reaching a vehicle speed of 10 mph, and the throttle remaining open (off
idle) for 2 minutes, bring the vehicle to a stop and allow the engine to idle with the transmission in DRIVE.
Set Condition:
The oxygen sensor signal voltage is switching from below 0.27 of a volt to above 0.62 of a volt and back fewer
times than required.
Possible Causes
EXHAUST LEAK
(K43) O2 2/1 SIGNAL CIRCUIT
(K900) SENSOR GROUND CIRCUIT
O2 SENSOR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.ACTIVE DTC
NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved sil-
icone, oil and coolant.
Ignition on, engine not running.
NOTE: After the repairs have been made, verify proper O2 Sensor operation.If all the O2 Sensor voltage
readings have not returned to normal, follow the diagnostic procedure forthe remaining O2 Sensors.
With a scan tool, read DTCs and record the related Freeze Frame data.
Is the DTC active at this time?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Diagnostic Procedure. (Refer to 9 - ENGINE - STANDARD
PROCEDURE)
2.EXHAUST LEAK
Start the engine.
Inspect the exhaust system for leaks between the engine and the O2 Sensors.
Are there any exhaust leaks?
Ye s>>
Repair or replace the leaking exhaust parts as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3
3.(K43) O2 2/1 SIGNAL CIRCUIT VOLTAGE DROP
Turn the ignition off.
While backprobing, measure the voltage of the (K43) O2 Sensor 2/1 Signal circuit between the 2/1 O2 Sensor har-
ness connector and PCM harness connector.
NOTE: Make sure the voltmeter leads meet the terminals in the connector andthat there is good terminal to
wire connection and are connected for positive polarity.
Start the engine.

When Monitored:
Start engine. Allow engine to idle. For 1st part of test, if limits are exceeded, test passes. If not, 2nd part of
test runs. amb/batt temp >44°F, Baro >22.13
H2O, battery >10.5 volts, MAP >11.79 & <18.15H2O, RPM
>1350 & <2200 and vss >50 and <65.
Set Condition:
The oxygen sensor signal voltage is switching from below 0.39 of a volt to above 0.58 of a volt and back fewer
times than required.
Possible Causes
EXHAUST LEAK
(K243) O2 2/2 SIGNAL CIRCUIT
(K900) SENSOR GROUND CIRCUIT
O2 SENSOR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.ACTIVE DTC
NOTE: Check for contaminants that may have damaged the O2 Sensor: contaminated fuel, unapproved sil-
icone, oil and coolant.
Ignition on, engine not running.
NOTE: After the repairs have been made, verify proper O2 Sensor operation.If all the O2 Sensor voltage
readings have not returned to normal, follow the diagnostic procedure forthe remaining O2 Sensors.
With a scan tool, read DTCs.
Is the DTC active at this time?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Symptom. (Refer to 9 - ENGINE - STANDARD PROCE-
DURE)
2.EXHAUST LEAK
Start the engine.
Inspect the exhaust system for leaks between the engine and the O2 Sensors.
Are there any exhaust leaks?
Ye s>>
Repair or replace the leaking exhaust parts as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3
3.(K243) O2 2/2 SIGNAL CIRCUIT VOLTAGE DROP
Turn the ignition off
Ignition on, engine not running.
With a voltmeter, back probe the (K243) O2 Sensor Signal circuit at the 2/2 O2 Sensor harness connector and the
PCM harness connector.
NOTE: Make sure the voltmeter leads meet the terminals in the connector andthat there is good terminal to
wire connection and are connected for positive polarity.
Start the engine.

Theory of Operation
The fuel feedback system will maintain a stoiciometric fuel/air mixture,14.7:1, by modifying the injector pulsewidth
according to the oxygen content of the exhaust gas. The PCM makes short termand long term fuel corrections to
maintain stoiciometric fuel/air ratio for best catalytic converter efficiency. Short term fuel correction is based on
upstream O2 sensor output and is designed for quick engine response. The long term fuel correction compensated
for variations in the engine specifications, sensor tolerances and component aging and is designed to correct rich
and lean conditions over a longer period of time.
When Monitored:
With the engine running in closed loop mode, the ambient/battery temperature above 20 deg. F and altitude
below 8500 ft.
Set Condition:
If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for
two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored. Two Trip Fault. Three good
trips to turn off the MIL
Possible Causes
FUEL PRESSURE OUT OF SPECS
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
FUEL PUMP MODULE
O2 SENSOR
(K41) O2 SENSOR 1/1 SIGNAL CIRCUIT SHORTED TO GROUND
O2 SENSOR 1/1 HEATER OPERATION
TP SENSOR
MAP SENSOR
ECT SENSOR
ENGINE MECHANICAL CONDITION
FUEL FILTER/PRESSURE REGULATOR
PCM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.GOOD TRIP EQUAL TO ZERO
NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved sil-
icone, oil and coolant.
Ignition on, engine not running.
With the scan tool, read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)