AdBlue / SCRLow ImpactDiesel
P2033 — Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
The post-SCR exhaust temperature sensor reading is outside expected range.
3+
Affected Brands
8+
ECU Platforms
2
Related Services
2
Related DTCs
Symptoms
What the driver typically experiences when P2033 is stored
!Check Engine Light
iAdBlue warning light
iPossible countdown to engine start inhibit
Why does P2033 appear after tuning?
Appears after AdBlue/SCR deactivation when exhaust temperature monitoring is not fully addressed.
How proper calibration can address P2033
WEREMAP AdBlue calibration includes comprehensive SCR monitoring deactivation including temperature sensors.
Related Diagnostic Codes
Codes from the same diagnostic system as P2033
Affected ECU Platforms
Delphi DCM3.5Bosch EDC16C34Bosch EDC17CP65Bosch EDC17C79Bosch EDC17C69Siemens/Continental SID209Bosch EDC17C10Bosch EDC17CP09
Commonly Affected Vehicles
FordTRUCKBosch EDC17CP65
JeepGrand CherokeeBosch EDC17C79
Alfa RomeoGiuliaBosch EDC17C69
FordRangerSiemens/Continental SID209
Based on data from 3+ vehicle brands. P2033 is not limited to these models.
Frequently Asked Questions
What does P2033 mean?â–¼
The post-SCR exhaust temperature sensor reading is outside expected range.
Why does P2033 appear after ECU tuning?â–¼
Appears after AdBlue/SCR deactivation when exhaust temperature monitoring is not fully addressed.
How do you prevent P2033 during remapping?â–¼
WEREMAP AdBlue calibration includes comprehensive SCR monitoring deactivation including temperature sensors.
Which vehicles are affected by P2033?â–¼
P2033 is commonly found on Ford, Jeep, Alfa Romeo vehicles equipped with Delphi DCM3.5, Bosch EDC16C34, Bosch EDC17CP65, Bosch EDC17C79 ECU platforms.
What other codes appear alongside P2033?â–¼
P2033 frequently appears together with P0546, P0544. These related codes typically originate from the same system modification and should be addressed together in the calibration.
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