DTC P0669:00 [MZR 1.6]

id0102h3706400

DTC P0669:00

PCM temperature sensor circuit high input

DETECTION CONDITION

•  If the PCM detects that the PCM temperature sensor voltage is more than the specification, the PCM determines that the PCM temperature sensor has a malfunction.

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.

•  DTC is stored in the PCM memory.

POSSIBLE CAUSE

•  PCM temperature sensor malfunction

DTC P0669:00	PCM temperature sensor circuit high input
DETECTION CONDITION	• If the PCM detects that the PCM temperature sensor voltage is more than the specification, the PCM determines that the PCM temperature sensor has a malfunction. Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available. • DTC is stored in the PCM memory.
POSSIBLE CAUSE	• PCM temperature sensor malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
1		No	Go to the next step.
2	VERIFY DTC TROUBLESHOOTING COMPLETED • Switch the ignition ON (engine off). • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR 1.6].) • Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST [MZR 1.6].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.6].)
2		No	Go to the next step.
3	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR 1.6].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.6].)
3		No	DTC troubleshooting completed.