Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the Contents Page Page 1 of 7 file://D:\Land rover Disco 3\GTR\workshop Manual\Parking Brake diag and test.htm 15/10/2008 Factory Power Upgrade for 3.0 Diesel Ingenium Engines D200, D250, D300, D350 - Land Rover, Jaguar; WSM-53145 - Workshop manual Defender (LE) 2023 AIRBAG SUPPLEMENTARY RESTRAINT SYSTEM PART NO: LR154987 Eng. PN M9V214D374AB; TOPIx Vehicle Diagnostics TOPIx Cloud Diagnostics can directly connect to 17MY vehicles onwards to run Vehicle Diagnostics. Ok you can test the can bus voltage thru the Diag connector Land Rover Discovery 3 OBD II connector, Pin 11 CAN Low, Pin 3 CAN High Or, Pin 14 CAN Low, Pin 6 CAN High Yellow/Black CAN Low Yellow/Brown CAN High using a mulit meter + to the pin - to earth the reading will be 2.5v or - 2.5 v depending on which you are reading hi or low Land Rover has garnered quite a reputation for reliability issues over the years. The Range Rover also is known to suffer from some issues as well. One of the most common of these problems is fault code P0106, which represents an issue with the MAP sensor. This code can also indicate a problem with the barometric pressure sensor. CAN bus faults don't always mean there's a problem with the bus itself, but that the expected data was not received from another module on the bus. For example, BMW L322s will store a (50) CAN bus fault in EAS if there is a fault in the ABS or SAS. Sometimes you need to reset the other module before the CAN fault will reset. Discovery II - Land Rover Discovery 2 P code list complete with transmission fault codes - P0101 - Air flow to throttle angle cross check fault Drive cycle B:Signal implausible. P0102 - Mass air flow sensor fault Drive cycle A:Signal out of range - below minimum. P1171: System too rich (bank 1) - Additive injector adaptive fuelling - rich limit exceeded LH bank. P1174: System too rich (bank 2) - Additive injector adaptive fuelling - rich limit exceeded RH bank. to understand what's that about you have to read the whole section. My friends call me Fery. #Landrover #LandroverDiscovery #LR3We completed a fuel injector balance and return spill check on Fabians Land Rover Discovery 3 with the 2.7 L TDV6 engine. bidy0E.