Dodge Sprinter. Manual — part 400
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
NOTE: Check connectors - Clean/repair as necessary.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Disconnect the Evaporator Temperature Sensor harness connector.
Measure the resistance of the Evaporator Temperature Sensor Signal circuit between
the Automatic Temperature Control (ATC) C1 harness connector and the Evaporator
Temperature Sensor harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the Evaporator Temperature Sensor Signal circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
NOTE: Check connectors - Clean/repair as necessary.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Disconnect the Evaporator Temperature Sensor harness connector.
Measure the resistance of the Sensor Ground circuit between the Automatic
Temperature Control (ATC) C1 harness connector and the Evaporator Temperature
Sensor harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Evaporator Temperature Sensor in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Sensor Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
157
HEATING & A/C
EVAP TEMP SENSOR HIGH OR OPEN (ACTIVE) —
Continued
Symptom:
EVAP TEMP SENSOR SHORTED LOW (ACTIVE)
POSSIBLE CAUSES
EVAPORATOR TEMPERATURE SENSOR
EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND CIRCUIT
EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
AUTOMATIC TEMPERATURE CONTROL (ATC)
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Evaporator Temperature Sensor harness connector.
Turn the ignition on.
With the DRBIII
t, record and erase Automatic Temperature Control DTCs.
Turn the ignition off, wait 5 seconds, then turn the ignition on.
With the DRBIII
t, read the Automatic Temperature Control DTCs.
Does the DRBIII
t display: EVAP TEMP SENSOR HIGH OR OPEN?
All
Yes
→ Replace the Evaporator Temperature Sensor in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Measure the resistance between ground and the Evaporator Temperature Sensor
Signal circuit.
Is the resistance below 10k ohms?
All
Yes
→ Repair the Evaporator Temperature Sensor Signal circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Measure the resistance between the Evaporator Temperature Sensor Signal circuit
and the Ground circuit.
Is the resistance below 10k ohms?
All
Yes
→ Repair the Evaporator Temperature Sensor Signal circuit for a
short to the Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
158
HEATING & A/C
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Disconnect the Evaporator Temperature Sensor harness connector.
Measure the resistance between the Evaporator Temperature Sensor Signal circuit
and the Sensor Ground circuit.
Is the resistance below 10k ohms?
All
Yes
→ Repair the Evaporator Temperature Sensor Signal circuit for a
short to the Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Automatic Temperature Control (ATC) in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
159
HEATING & A/C
EVAP TEMP SENSOR SHORTED LOW (ACTIVE) —
Continued
Symptom:
NO COMMUNICATION BUS (ACTIVE)
When Monitored and Set Condition:
NO COMMUNICATION BUS (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) fails to
receive all module messages.
POSSIBLE CAUSES
CAN CIRCUITS SHORTED TO VOLTAGE
MODULE SHORT TO VOLTAGE
CAN CIRCUITS SHORTED TO GROUND
MODULE SHORT TO GROUND
CAN CIRCUITS SHORTED TOGETHER
ENGINE CONTROL MODULE
SENTRY KEY REMOTE ENTRY MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Instrument Cluster harness connectors.
Turn the ignition on.
Measure the voltage between CAN C Bus (+) circuit and ground.
Measure the voltage between CAN C Bus (-) circuit and ground.
Is the voltage above 3.0 volts on either circuit?
All
Yes
→ Go To 2
No
→ Go To 3
160
HEATING & A/C
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