P1688

27A8 - P1688

Information saved in
DME

Fault code
27A8 - P1688

Fault text
Control module, internal fault

Fault description
Electronic Throttle Control Monitor Level 2/3 Mass Air
Flow Calculation

Condition for fault identification
Test condition:
Implausible data
Terminal condition: Terminal 15
Voltage condition:
none

Condition for fault memory entry
100 ms

Action in service
1. Clear fault memory
2. Update DME
2. Replace DME

Fault effect and breakdown warning
CC message
Engine speed limited
Reduced power
MIL after engine runs 2x

Driver information
Warning light:
MIL, EML, CC message, backup program

Service instruction
none