DTC U0401:00 [MZR-CD 2.2]

DTC U0401:00 [MZR-CD 2.2]SM2444451

id0102f3851700

DTC U0401:00	Erratic signal from PCM
DETECTION CONDITION	• SCR control unit receives erratic signal from PCM for 5 s or more Diagnostic support note • The MIL illuminates if the SCR control unit detects the above malfunction condition in first drive cycle. • PENDING CODE is available if the SCR control unit detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA (mode2) and snapshot data are available. • The DTC is stored in the SCR control unit memory.
POSSIBLE CAUSE	—

DTC U0401:00

Erratic signal from PCM

DETECTION CONDITION

• SCR control unit receives erratic signal from PCM for 5 s or more

Diagnostic support note

• The MIL illuminates if the SCR control unit detects the above malfunction condition in first drive cycle.

• PENDING CODE is available if the SCR control unit detects the above malfunction condition during the first drive cycle.

• FREEZE FRAME DATA (mode2) and snapshot data are available.

• The DTC is stored in the SCR control unit memory.

POSSIBLE CAUSE

—

Diagnostic procedure

STEP	INSPECTION		ACTION
1	—	—	Note • This DTC is detected at the same time other malfunctions occur. Go to the applicable DTC troubleshooting. (See DTC TABLE [MZR-CD 2.2].)