Prndl Switch Input Circuit Open (Diesel Only) - Dodge Ram 2004 Service Manual

INSTRUMENT CLUSTER
Symptom:

PRNDL SWITCH INPUT CIRCUIT OPEN (DIESEL ONLY)

When Monitored and Set Condition:
PRNDL SWITCH INPUT CIRCUIT OPEN (DIESEL ONLY)
When Monitored: With the ignition on.
Set Condition: The instrument Cluster detects that an open condition exists in the
PRNDL circuit.
TRANSMISSION RANGE SENSOR
TRS MUX CIRCUIT OPEN
TRANSMISSION RANGE SENSOR 5 VOLT SUPPLY CIRCUIT OPEN
INSTRUMENT CLUSTER
TEST
1 NOTE: Ensure that the correct Instrument Cluster is installed and is
correctly configured for the vehicle.
Turn the ignition off.
Disconnect the Transmission Range Sensor harness connector.
Connect a jumper wire between cavity 2 and cavity 5.
Turn the ignition on.
With the DRBIII , read DTCs.
Does the DRBIII display PRNDL Switch Input Circuit Shorted?
Yes → Replace the Transmission Range Sensor in accordance with the
→ Go To 2
No
2 Turn the ignition off.
Disconnect the Transmission Range Sensor harness connector.
Disconnect the Instrument Cluster C3 harness connector.
Measure the resistance of the Transmission Range Sensor MUX circuit.
Is the resistance above 5.0 ohms?
Yes → Repair the Transmission Range Sensor MUX circuit for an open.
→ Go To 3
No
POSSIBLE CAUSES
ACTION
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
436
APPLICABILITY
All
All