P1301

150102 - P1301

Information saved in
DME

Fault code
150102 - P1301

Fault text
Ignition, cylinder 1: combustion duration too short

Fault description
The diagnostic function monitors the spark duration.

Condition for fault identification
Test condition:
The fault is recognized when the spark duration is below a
value stored in the program map.
Potential problem source(s):
- Defective spark plug
- Defect in wiring harness between ignition coil and DME
- Defective ignition coil
- Defective DME
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- Engine ON

Condition for fault memory entry
The diagnostic fault code is logged when the fault counter
total is above 320.

Action in service
- Replace spark plug
- Check wiring harness between ignition coil and DME
- Check ignition coil
- Replace DME if the fault code remains logged
continuously

Fault effect and breakdown warning
Breakdown notice:
Continued driving possible if only the one cylinder is
affected. The ignition miss detection should recognize the
affected cylinder and deactivate the injection to protect the
catalytic converter.
Possible apparent symptoms:
Ignition miss and hard starting can occur.

Driver information
Warning light:
MY10 ECE:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: off
- CC message: none
MY10 US:
- US emissions warning lamp: off
- US electronic engine power reduction: on
- CC message: on
MY11 ECE:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: on
- CC message: on

Service instruction
None