P1504

DTC P1504, sometimes indicated as P150400 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the engine idling stability causing tcspl solenoid circuit malfunction.

• P1504: TCSPL Solenoid Circuit Malfunction

These codes are commonly diagnosed with error code P1504.

• P0141 [1] 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
• P0340 [1] Camshaft Position Sensor Circuit Malfunction (Bank 1)
• P0385 [1] Crankshaft Position Sensor B Circuit Malfunction
• P0306 [1] Cylinder 6 Misfire Detected
• P0117 [1] Engine Coolant Temperature Sensor Circuit 1 Low Input
• P0360 [1] Ignition Coil J Primary/Secondary Circuit Malfunction
• P0350 [1] Ignition Coil Primary/Secondary Circuit Malfunction
• P0320 [1] Ignition/Distributor Engine Speed Input Circuit Malfunction
• P1518 [1] Intake Manifold Runner Control (Bank 2) Stuck Closed
• P0300 [1] Random/Multiple Cylinder Misfire Detected
• P0174 [1] System too Lean (Bank 2)
• P0175 [1] System too Rich (Bank 2)
• P0122 [1] Throttle Position Sensor/Switch A Circuit Low Input
• P1507 [1] Vehicle Speed Sensor Intermittent Malfunction