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Diagnostic Routines

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
ROUTINE NUMBER ROUTINE DESCRIPTION ROUTINE ACTION
0x0406 Reset all adaptions Value 0x0F - To Reset Selective Catalyst Reductant (SCR) Inducement System Start Inhibit
0x4026 Reset Specified Information Value 0x2C - To Reset Selective Catalyst Reductant (SCR) Quality Monitor
0x4076 Selective Catalytic Reductant Preparation This routine forms part of the DEF prime routine to be carried out at end of line and in service if components are replaced
0x4077 Selective Catalytic Reductant Dosing Measuring Test This routine carries out a leak and dosing quantity test by using inputs from the tool. If all inputs from the tool are zero, then the test is a visual inspection for leaks while under pressure, quantity tests are done by comparing the reductant amount delivered with the amount requested
0x4078 Selective Catalytic Reductant Emptying This routine empties/purges the hydraulic lines of the DEF system which will be necessary in service to renew aged diesel exhaust fluid
0x4092 Test Reductant System Lines This routine tests the integrity of the DEF lines at low pressure (1 - 2 bar)
0x4093 Test The Pump Emptying The High Pressure Reductant System This routine is used to test the back flow pump which empties the DEF lines when the system is drained
0x4094 Test Dosing Valve Dynamic Behavior This routine tests the quantity of DEF delivered with the injector opened for a given period of time
0x4095 Test Measured Static Reductant Dosing Quantity This routine tests the quantity of DEF delivered against an expected value
0x4096 Test Reductant Spray Pattern This routine tests the pattern of DEF injected from the dosing module as there is often a build-up of residue around the actual injector.
0x4097 Prime Reductant System For First Fill This routine is used to prime the reductant system following component replacement and includes a short pressure test to confirm the integrity of the pipework
0x409A Reductant First Fill And Pressure Test Selective reductant catalyst system end of line first fill and pressure test routine. This routine will prime and test the system
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