Low Speed Fan CTRL Relay Circuit
1995-2000 Chrysler Cirrus 2.5L V6
Description
The PCM has detected a malfunction in the low-speed cooling fan relay control circuit. The relay that runs the cooling fan at low speed for normal cooling is not functioning properly.
Symptoms
- Check Engine Light
- Engine running warmer than normal
- Cooling fan does not run at low speed
- Fan only runs at high speed or not at all
Common Causes
- Faulty low-speed fan relay
- Fan resistor or module failure
- Wiring issue in relay circuit
- Corroded relay socket contacts
- PCM driver circuit malfunction
Diagnostic Steps
- Test low-speed fan relay by swapping with identical relay
- Check relay socket for proper voltages
- Test fan resistor or speed control module
- Inspect wiring for opens or shorts
- Check PCM control output
Repair Notes
Replace the low-speed fan relay or fan resistor module; repair wiring if damaged.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1490 on Other Vehicles
Common Questions
What does code P1490 mean on a 1995-2000 Chrysler Cirrus?
P1490 stands for "Low Speed Fan CTRL Relay Circuit". The PCM has detected a malfunction in the low-speed cooling fan relay control circuit. The relay that runs the cooling fan at low speed for normal cooling is not functioning properly.
What are the symptoms of P1490 on a Chrysler Cirrus?
Common symptoms of P1490 include: Check Engine Light, Engine running warmer than normal, Cooling fan does not run at low speed, Fan only runs at high speed or not at all.
What causes P1490 on a 1995-2000 Chrysler Cirrus?
Common causes of P1490 include: Faulty low-speed fan relay, Fan resistor or module failure, Wiring issue in relay circuit, Corroded relay socket contacts, PCM driver circuit malfunction.