2006 DODGE RAM SRT-10 Service Repair Manual

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Page 1329 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
With the engine running, coolant greater than 170°F, open throttle, steady to slightly increasing vehicle speed
greater than 18 mph but less than 55 mph, with a light load on the engi

When Monitored:
With the engine running, coolant greater than 170°F, open throttle, steady to slightly increasing vehicle speed
greater than 18 mph but less than 55 mph, with a light load on the engine, for aperiod no less than 5 minutes.
Set Condition:
The oxygen sensor signal voltage is switching from below 0.39 of a volt to above 0.6 of a volt and back fewer
times than required.
Possible Causes
EXHAUST LEAK
RESISTANCE IN THE (K43) O2 SENSOR 2/1 SIGNAL CIRCUIT
RESISTANCE IN THE (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.GOOD TRIP EQUAL TO ZERO
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)
2.EXHAUST LEAK
Start the engine.
Inspect the exhaust for leaks between the engine and the appropriate O2 Sensor.
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 SENSOR 2/1 SIGNAL CIRCUIT VOLTAGE DROP
Turn the ignition off.
Backprobe the (K43) O2 Sensor 2/1 Signal circuit at the 2/1 O2 Sensor harness connector and PCM harness con-
nector.
NOTE: Make sure the voltmeter leads are connected for positive polarity, meet the terminals in the connec-
tor, and that there is good terminal to wire connection.
NOTE: Make sure the voltmeter leads are connected for positive polarity
Start the engine.
Allow the engine to idle.
Is the voltage below 0.10 of a volt?
Ye s>>
Go To 4
No>>
Repair the excessive resistance on the (K43) O2 Sensor 2/1 Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

Page 1330 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 4.(K900) SENSOR GROUND CIRCUIT VOLTAGE DROP
Turn the ignition off.
Backprobe the (K900) Sensor ground circuit at the 2/1 O2 Sensor harness connector and PCM harness connector.
NOTE: Make sure the volt

Page 1331 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P126B-ASD CONTROL CIRCUIT 2 LOW
For a complete wiring diagramRefer to Section 8W.

Page 1332 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
Set Condition:
A shorted condition is detected in the ASD control circuit. One Trip Fault.Three good trips to turn off the

Page 1333 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 3.(K342) ASD CONTROL OUTPUT CIRCUIT SHORTED TO GROUND
Turn the ignition off
Disconnect the C10 TIPM harness connector.
Measure resistance between ground and (K342) ASD Control Output
circuit at the C1

Page 1334 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 6.PCM
Disconnect C3 NGC harness connector.
Measure resistance between ground and (K342) ASD Control Output
circuit at the C10 TIPM harness connector.
Does the resistance change to above 100 ohms when

Page 1335 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P126C-ASD CONTROL CIRCUIT 2 HIGH
For a complete wiring diagramRefer to Section 8W.

Page 1336 of 5267

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