MSS60 Error: 2B26, P155C, P155D, P155E, P155F

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2B26 - P155C

Information saved in DME
Fault code 2B26 - P155C
Fault text Throttle-valve monitoring, bank 2
Fault description Throttle Actuator Monitoring Dissimilar Desired Values (Bank 2)
Condition for fault identification Test condition: Difference too large
Terminal condition: TERM87
Voltage condition: Battery voltage > 6.8V (k_egas_can_ed_ub_min)
Condition for fault memory entry 300 ms
Action in service 1. Clear fault memory, EDR electronic throttle valve control system test
2. Check plug, wiring harness and power supply to EDR2
3. Replace EDR2
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


2B26 - P155D

Information saved in DME
Fault code 2B26 - P155D
Fault text Throttle-valve monitoring, bank 2
Fault description Throttle Actuator Monitoring Incorrect Actual Value (Bank 2)
Condition for fault identification Test condition: Difference too large
Terminal condition: TERM87
Voltage condition: Battery voltage > 6.8V (k_egas_can_ed_ub_min)
Condition for fault memory entry 300 ms
Action in service 1. Clear fault memory, EDR electronic throttle valve control system test
2. Check 2nd plug, wiring harness and power supply for throttle valve DK2, EDR2 and DME,
3. Replace DK2
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


2B26 - P155E

Information saved in DME
Fault code 2B26 - P155E
Fault text Throttle-valve monitoring, bank 2
Fault description Throttle Actuator Monitoring Actual Value / Desired Value Correlation (Bank 2)
Condition for fault identification Test condition: Difference too large
Terminal condition: TERM87
Voltage condition: Battery voltage > 6.8V (k_egas_can_ed_ub_min)
Condition for fault memory entry 350 ms
Action in service 1. Clear fault memory, EDR electronic throttle valve control system test
2. Check plug, wiring harness and power supply to throttle valve DK2 and EDR2
3. Check throttle valve assembly B2 for mechanical stiction
4. Replace DK2
5. Replace EDR2
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


2B26 - P155F

Information saved in DME
Fault code 2B26 - P155F
Fault text Throttle-valve monitoring, bank 2
Fault description Throttle Actuator Monitoring Reset Error (Bank 2)
Condition for fault identification Test condition: Not identical for too long
Terminal condition: TERM87
Voltage condition: Battery voltage > 6.8V (k_egas_can_ed_ub_min)
Condition for fault memory entry 250 ms
Action in service 1. Clear fault memory, EDR electronic throttle valve control system test
2. Check plug, wiring harness and power supply to EDR2
3. Replace EDR2
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