Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual — part 70
TEST
ACTION
APPLICABILITY
3
NOTE: Make sure that the A/C - Heater Control C1 harness connector is
connected to the A/C - Heater Control.
Turn the ignition on.
With the DRBIII
t, record and erase Body Computer DTC’s.
With the DRBIII
t, read Body Computer DTCs.
Does the DRBIII
t display: A/C Head, EBL Input Shorted To Batt?
All
Yes
→ Replace the A/C - Heater Control in accordance with the Service
Information.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for conditions causing an intermittent
short.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
265
HEATING & A/C
A/C HEAD, EBL INPUT SHORTED TO BATTERY - MTC —
Continued
Symptom:
A/C HEAD, EBL INPUT SHORTED TO GROUND - MTC
When Monitored and Set Condition:
A/C HEAD, EBL INPUT SHORTED TO GROUND - MTC
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the BCM detects voltage below 0.1 volts on its A/C
Switch Sense circuit.
POSSIBLE CAUSES
CONTROL HEAD - SHORT TO GROUND
A/C SWITCH SENSE CIRCUIT SHORT TO GROUND
A/C SW SENSE CIRCUIT SHORT TO SENSOR GROUND
BODY CONTROL MODULE - A/C SWITCH SENSE SHORT TO GROUND
CONTROL HEAD - A/C SWITCH SENSE INCORRECT
BODY CONTROL MODULE - A/C SWITCH SENSE INCORRECT
INTERMITTENT WIRING PROBLEM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Put the Mode Control switch in the Recirc/Bi-Level (full left) position.
With the DRBIII
t, record and erase Body Computer DTC’s.
With the DRBIII
t in Sensor Display, read the A/C EBL voltage.
Is the voltage below 0.5 volts?
All
Yes
→ Go To 2
No
→ Go To 6
2
Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Turn the ignition on.
With the DRBIII
t in Sensor Display, read the A/C EBL voltage.
Is the voltage above 3.0 volts?
All
Yes
→ Replace the A/C - Heater Control in accordance with the Service
Information.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
266
HEATING & A/C
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between ground and the A/C Switch Sense circuit.
Is the resistance below 10K ohms?
All
Yes
→ Repair the A/C Switch Sense circuit for a short to ground.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Disconnect the Body Control Module C2 harness connector.
Measure the resistance between the Sensor Ground circuit and the A/C Switch Sense
circuit at the A/C - Heater Control C1 harness connector.
Is the resistance below 10K ohms?
All
Yes
→ Repair the A/C Switch Sense circuit for a short to the Sensor
Ground circuit.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Body Control Module in accordance with
the Service Information.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition on.
With the DRBIII
t, record and erase DTCs.
Ensure that the Rear Window Defogger is off.
Put the Mode Control switch in the Recirc/Bi-Level (full left) position.
Start the engine.
With the DRBIII
t in Sensor Display, read the A/C ABLE Switch voltage and the Mode
Switch voltage in each door position.
Look for the following approximate voltage readings:
Recirc-A/C position: A/C EBL Switch, 4.42 volts, Mode Switch, 1.32 volts.
Panel-A/C position: A/C EBL Switch, 4.42 volts, Mode Switch, 3.20 volts.
Mix-A/C position: A/C EBL Switch 4.42 volts, Mode Switch 5.07 volts.
Panel-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 3.20 volts.
Mix-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 5.07 volts.
Floor-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 7.16 volts.
Does DRBIII
t display the approximate voltages for each Mode Control switch
position?
All
Yes
→ Go To 7
No
→ Replace the A/C - Heater Control in accordance with the Service
Information.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
267
HEATING & A/C
A/C HEAD, EBL INPUT SHORTED TO GROUND - MTC —
Continued
TEST
ACTION
APPLICABILITY
7
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Start the engine.
Turn the Blower Control switch on.
With the DRBIII
t, read DTCs while slowly turning the Mode Control switch to each
of the door positions several times.
Does the DRBIII
t display: A/C Head, EBL Input Shorted to Ground?
All
Yes
→ Replace and program the Body Control Module in accordance
with the Service Information.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for conditions causing an intermittent
short.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
268
HEATING & A/C
A/C HEAD, EBL INPUT SHORTED TO GROUND - MTC —
Continued
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