4A04

4A04 - P064C

Information saved in
DDE

Fault code
4A04 - P064C

Fault text
DDE: Glow control unit: internal temperature too high

Fault description
Preglow ECU overheating error.
The glow-plug preheating control module reports the fault to
the DDE in a LIN message.

Condition for fault identification
Test condition:
The LIN message is transmitted every 500 ms.
Voltage condition:
The LIN message is transmitted every 500 ms.

Condition for fault memory entry
Debounce (1200 ms)

Action in service
1. Check contact between glow-plug preheating control
module and engine block.
2. If no fault is detected: Replace glow-plug preheating
control module.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none