Page 720 - Workshop Manual - Tunland (2017)

04-34 DIAGNOSTICS - ENGINE CONTROL SYSTEM

04
Failure code Diagnostic items (DTC definition) Trouble location
sor circuit - voltage is above normal temperature sensor module and
or shorted to high voltage power wiring harness
supply • ECM

Postprocessing preheat diesel oxida-
• Postprocessing DOC sensor and
tion converter inlet temperature sen-
postprocessing DOC temperature
P3153 sor circuit - voltage is below normal
sensor module and wiring harness
or shorted to low voltage power sup- • ECM
ply

Postprocessing preheat diesel oxida- • Postprocessing DOC temperature
tion converter inlet temperature sen- sensor and postprocessing DOC
P3155 sor circuit - voltage is above normal temperature sensor module and
or shorted to high voltage power wiring harness
supply • ECM

Postprocessing preheat diesel oxida- • Postprocessing DOC temperature
tion converter inlet temperature sen- sensor and postprocessing DOC
P3156 sor circuit - voltage is below normal temperature sensor module and
or shorted to low voltage power sup- wiring harness
ply • ECM

• Postprocessing DOC oxidation
Postprocessing preheat diesel oxida- catalyst
P3158 tion converter missing - Problems
• Postprocessing system
exist
• ECM

• Injector
Postprocessing preheat diesel oxida-
• Postprocessing DOC oxidation
tion converter outlet temperature -
P3162 catalyst
data is valid but above normal oper- • Postprocessing system
ating range - highest severity level
• ECM

Postprocessing diesel particulate fil- • Postprocessing DPF
ter system - data is valid but above • Postprocessing DPF differential
P3168
normal operating range - medium pressure sensor and its harness
severity level • ECM

• Injector
Postprocessing preheat diesel oxida-
• Postprocessing DOC oxidation
tion converter outlet temperature -
P3169 catalyst
data is valid but above normal oper- • Postprocessing system
ating range - lowest severity level
• ECM

• Thermostat
Engine cooling system monitor - data
• Coolant temperature sensor and
P3243 valid but below normal operating
its harness
range - medium severity level
• ECM