DTC P064D:00 [MZR 2.3 DISI Turbo]

id0102g4302700

DTC P064D:00

Internal control module A/F sensor processor performance problem

DETECTION CONDITION

•  The A/F sensor IC integrated in the PCM converts to voltage value for fuel control and for diagnosis based on the A/F sensor signal current and sends to the CPU (integrated in the PCM). If there is a transmission format error from the A/F sensor IC to the PCM, the PCM will detect a transmission error.

MONITORING CONDITIONS

―  Drive Mode 03 (EGR System, A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode)

―  Following conditions are met:

•  Engine is running or ignition switch is ON

•  A/F sensor signal voltage: 1.2 V—battery voltage−1.2 V (PCM terminals 2Z, 2AC, 2AD)

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.

•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.

•  The DTC is stored in the PCM memory.

POSSIBLE CAUSE

•  PCM internal malfunction (between CPU and A/F sensor control IC communication line)

DTC P064D:00	Internal control module A/F sensor processor performance problem
DETECTION CONDITION	• The A/F sensor IC integrated in the PCM converts to voltage value for fuel control and for diagnosis based on the A/F sensor signal current and sends to the CPU (integrated in the PCM). If there is a transmission format error from the A/F sensor IC to the PCM, the PCM will detect a transmission error. MONITORING CONDITIONS ― Drive Mode 03 (EGR System, A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode) ― Following conditions are met: • Engine is running or ignition switch is ON • A/F sensor signal voltage: 1.2 V—battery voltage−1.2 V (PCM terminals 2Z, 2AC, 2AD) Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA (Mode 2)/Snapshot data is available. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE	• PCM internal malfunction (between CPU and A/F sensor control IC communication line)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2	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.
2		No	Go to the next step.
3	VERIFY DTC TROUBLESHOOTING COMPLETED • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR 2.3 DISI Turbo].) • Perform the KOER self test. (See KOEO/KOER SELF TEST [MZR 2.3 DISI Turbo].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
3		No	Go to the next step.
4	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR 2.3 DISI Turbo].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 2.3 DISI Turbo].)
4		No	DTC troubleshooting completed.