Did D020 Table

Using the JLR  approved diagnostic equipment, read the DID  D020 and check the snapshot data to determine the missing message source control module. Check the relevant control module for related DTC  (s) and refer to the relevant DTC  index.

Using the JLR  approved diagnostic equipment, perform a CAN  network integrity test. Refer to appropriate Wiring Diagrams article for schematic and connector information. and check the HS CAN  network (chassis) between the relevant control module (for example as indicated by the snapshot data) and the PSCM  .

If DID  D020 is not supported, or If no fault is found, clear the DTC  (s) and retest (do not replace any modules just on the basis of this DTC  ) Check the PSCM HS CAN  network (chassis) wiring harness and connectors. Check other modules on HS CAN  network (chassis) for U0001-87, U0001-88, U0001-87, U0001-88 and check wiring harness for these modules and rectify appropriately:

• Gateway Module A (GWM)
• ABS 
• TR 
• CHCM 
• Powertrain Control Module (PCM)
• TCM 
• BCM 
• Headlamp Control Module B (HCMB)
• All wheel drive module (AWD)
• PAM 
• Image Processing Module 'A' (IPMA)
• SASM 

To decode the Hexadecimal response use the following table: