P1580

DTC P1580: DOR Radiator Tampering Monitor (Encrypted Message)

Radiator Sensor Circuit Part 1:

Radiator Sensor Circuit Part 2:

RADIATOR SENSOR CIRCUIT

CIRCUIT OPERATION
- The battery voltage is applied from the ignition switch to the radiator sensor (terminal No.3), and it is grounded to the vehicle body from the radiator sensor (terminal No.1).
- The radiator sensor (terminal No.2) sends the sensor signal to the powertrain control module (terminal No.3).

MONITOR EXECUTION
Continuous

DTC SET CONDITIONS Logic Flow Chart

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- Not applicable

Sensor (The sensor below is determined to be normal)
- Not applicable

DTC SET CONDITIONS

Logic Flow Chart:

Logic Flow Chart

Check Condition
- Battery positive voltage is higher than 11 volts
- Engine coolant between -30 °C (-22 °F) and 110 °C (230 °F)

Judgement Criteria
- Communication error

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CODE TO BE SET ARE:)
- Malfunction of the radiator sensor
- Malfunction of the PCM

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A

STEP 1. Replace the DOR radiator

Check the diagnostic trouble code (DTC).

Q: Is DTC P1580 set?

YES: Replace the PCM. Then go to Step 2.

NO: The procedure is complete.

STEP 2. Perform the OBD-II drive cycle.

Check the diagnostic trouble code (DTC).

Q: Is DTC P1580 set?

YES: Repeat the troubleshooting.

NO: The procedure is complete.