2006 DODGE RAM SRT-10 Service Repair Manual

fuel filter headlights high beam headlight bulb length light

Page 4881 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B10B2–A/C COOL DOWN TEST PERFORMANCE (DUAL-ZONE)
For a complete wiring diagramRefer to Section 8W.
Theory of Operation
The Cooldown Test checks A/C system performance based on Evaporator Temperature

B10B2–A/C COOL DOWN TEST PERFORMANCE (DUAL-ZONE)
For a complete wiring diagramRefer to Section 8W.
Theory of Operation
The Cooldown Test checks A/C system performance based on Evaporator Temperature Sensor input. The main cri-
teria is to lower evaporator temperature 11.11°C (20°F) within one minute. Before starting the test, the evaporator
temperature must be above 13°C (55°F) and the front blower speed must be setto high speed. When the test is
running, A/C Select and A/C Request will be on and the A/C status indicator will flash. When the test is complete,
the scan tool will display one or more test status messages to indicate the outcome of the Cooldown Test. A Suc-
cessful Cooldown – Test Passed status message indicates that the main testcriteria was met. A DTC Set During
Routine – Test Not Passed status message indicates that the A/C system is unable to lower the evaporator tem-
perature 11.11°C (20°F) within one minute. A Conditions Too Cold – Test NotRun status message indicates that the
evaporator temperature was below 13°C (55°F) when starting the Cooldown Test. A Blowers Not On High – Test Not
Run status message indicates that either the front blower speed was not setto high speed prior to starting the
Cooldown Test or the front blower speed was changed from high speed to another setting after starting the
Cooldown test. A Refrigerant Temperature Sensor Error status message indicates that a fault occurred with the
Evaporator Temperature Sensor/sensor circuits. A No Results Stored/Test Not Complete status message indicates
that the power was cycled while the test was running.
When Monitored:
When the Cooldown Test is executed.
Set Condition:
If the A/C system is unable to lower the evaporator temperature 11.11°C (20°F) within one minute.
Possible Causes
OTHER HVAC SYSTEM FAULTS PRESENT
EVAPORATOR TEMPERATURE SENSOR CIRCUITS
EVAPORATOR TEMPERATURE SENSOR
TOTALLY INTEGRATED POWER MODULE (TIPM) FAULTS PRESENT
POWERTRAIN SYSTEM FAULTS PRESENT
Diagnostic Test
1.DIAGNOSE COOLDOWN TEST STATUS MESSAGES
WereanyofthefollowingstatusmessagespresentafterperformingtheCooldown Test?
Yes, Conditions Too Cold - Test Not Run
If running, turn the A/C compressor off. Verify that the work area ambient temperature is above 15.6°C
(60°F). If not, move the vehicle to a warmer work area. Verify that the evaporator temperature is above
13°C (55°F). If not, set the blower to high speed and allow the blower to run for five minutes. Then, run
the Cooldown Test again.
Yes, Blowers Not On High - Test Not Run
Set the blower speed to high speed and then run the Cooldown Test again.
Yes, No Results Stored/Test Not Complete
Verify that power is not interrupted while rerunning the Cooldown Test.
No>>
Go To 2

Page 4882 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 2.CHECK FOR DTCs IN THE A/C HEATER CONTROL MODULE
Turn the ignition on.
With the scan tool, read HVAC DTCs.
Excluding B10B2–A/C Cool Down Test Performance, are any DTCs present in the A/C Heater Con

Page 4883 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B10C0–CONDENSER FAN CONTROL CIRCUIT OPEN (TIPM)
For a complete wiring diagramRefer to Section 8W.

Page 4884 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
With the ignition on. Battery voltage greater than 10.4 volts. TIPM requesting Condenser Fan operation.
Set Condition:
If the Totally Integrated Power Module (TIPM) detects an open con

Page 4885 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 3.CHECK CONDENSER FAN MOTOR
Reconnect the TIPM C8 harness connector.
Ignition on, engine not running.
With the scan tool, actuate the Condenser Fan.
Using a 12-volt test light connected to ground, pro

Page 4886 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B10EC–BLOWER MOTOR CONTROL CIRCUIT OVERCURRENT (TIPM)
For a complete wiring diagramRefer to Section 8W

Page 4887 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
With the ignition on.
Set Condition:
The Totally Integrated Power Module (TIPM) will set this DTC if it detects an overcurrent condition on the
(F942) Fused Ignition Switch Output (Run

Page 4888 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 3.CHECK THE (F942) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT FUNCTION
Connect one end of a jumper wire to the (F942) Fused Ignition Switch
Output (Run-Start) circuit in the Blower Motor harness

Load next 8 pages

Page: < prev 1-10 ... 4849-4856 4857-4864 4865-4872 4873-4880 4881-4888 4889-4896 4897-4904 4905-4912 4913-4920 ... 5272 next >

service schedule light technical specifications language seat adjustment fuses