2006 DODGE RAM SRT-10 Service Repair Manual

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Page 25 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 5.(V32) BRAKE SWITCH NO.2 SIGNAL CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the (V32) Brake Switch No.2 Signal circuit
from the Stop Lamp Switch harness connector to the appropriate

Page 26 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 7.(B29) BRAKE SWITCH NO.1 SIGNAL CIRCUIT OPEN
Measure the resistance of the (B29) Brake Switch No.1 Signal circuit
from the Stop Lamp Switch harness connector to the appropriate termi-
nal of special

Page 27 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0850-PARK/NEUTRAL SWITCH PERFORMANCE
For a complete wiring diagramRefer to Section 8W.

Page 28 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual Theory of Operation
The Park Neutral switch rationality test is enabled only for vehicles equipped with a 4/5 speed automatic transmis-
sion. This diagnostic checks if the park/neutral switch is incor

Page 29 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 2.TRS (T41) SENSE (P/N SENSE) CIRCUIT OPEN
Turn the ignition off.
Disconnect the C3 PCM harness connector.
Disconnect the Transmission Range Sensor harness connector.
CAUTION: Do not probe the PCM har

Page 30 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 4.TRANSMISSION RANGE SENSOR
Measure the resistance between ground and the (T41) TRS Sense (P/N
Sense) circuit while moving the gear selector through each gear in the
TRS connector.
NOTE: The circuit i

Page 31 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P1115-GENERAL TEMPERATURE RATIONALITY
For a complete wiring diagramRefer to Section 8W.

Page 32 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual Theory of Operation
The General Temperature Rationality looks at the outputs of the three temperature sensors and compare them
under cold start conditions. Following a start to run delay time, the out

Theory of Operation
The General Temperature Rationality looks at the outputs of the three temperature sensors and compare them
under cold start conditions. Following a start to run delay time, the outputs of the ambient, engine coolant, and
intake air temperature sensors will be compared. If two sensors agree but not the third, the third sensor is declared
as irrational. If all three sensors are irrational the General Temperature Sensor Rationality is failed.
When Monitored:
Ignition on and battery voltage greater than 10 volts.
Set Condition:
Ambient Air, Engine Coolant, and Intake Air Temp sensor inputs are compared under cold start conditions.
After start up the temp readings are monitored. If two of the three readingsagree and the third doesn’t, a DTC
is stored. Two Trip Fault. Three good trips to turn off the MIL.
Possible Causes
EXCESSIVE RESISTANCE IN THE SENSOR SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
EXCESSIVE RESISTANCE IN THE (G930) AAT RETURN CIRCUIT
TEMPERATURE SENSOR
PCM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.ACTIVE DTC
Ignition on, engine not running.
With a scan tool, read the DTCs.
NOTE: All ECT, Intake Air, and Ambient Air Temperature Sensor codes must bediagnosed and repaired
before continuing.
NOTE: In cold weather, this DTC could be set by a high powered block heater andnorepairwouldbe
required.
Is the DTC active at this time?
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.TEMPERATURE SENSOR CIRCUIT
With a scan tool, read the ECT, Ambient Air Temp, and Intake Air Temp Sensor temp values.
Start the engine.
Allow the engine to reach normal operating temperature while monitoring the three Sensor temperature values.
Is the temperature for each of the Sensors increasing properly?
Ye s>>
Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3

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