Question1 check engine light with 2 codes P0300 (random multiple cylinder misfire) and P1316 which I cant find the meaning of.the vehicle continues to run fine
2 Is there a portable reader that can read the climate control errors. The book indication is on but all features seem to work fine blend motors and recirculating. Does 134 content effect it? Thanks joe
AnswerHi Joe,
P1316 indicates misfires causing excessive emissions. Be careful here...you could loose your catalytic converters! Have this problem addressed ASAP!
There's the Automex AMX530 in europe. It has a USB connection capability so you can run diagnostic software on your PC or notebook. Not sure if its available in N.America (NAS).
There's Autologic. Atlantic British has them available for NAS. Check their website:
http://www.autologic-diagnos.com/products/lrhome.htm?land-rover
Autologic covers ...
• All engines
• All transmissions
• ABS/Traction control/ACE/SLABS
• BeCM/BCU and CCU
• Air bags
• Heating and ventilation
• Cruise control
• Instrument cluster
• Air suspension
• Security 10AS and EWS
"Heating and ventilation" should include AC. R134 content? I'm not sure about your question.
From what I understand, only Disco II's have AC codes that can be read without a special device.* Your Rangie is electronically controlled and only the dealer TestBook, T4, Rovacomm, ROVACOMLITE, or Autologic (aftermarket)devices can read these codes.
I read an article once about Rangie AC's:
"...If your air conditioner comes on, but then gets warm after a little whilecheck your compressor. If the clutch is not engaged but the system is on tap the end of the clutch (the part that isn't spinning) with a ball peen hammer. If it snaps into engagement, shut the vehicle off and check the gap between the two clutch plates on the compressor. This gap can increase with age to the point where the compressor will stop engaging reliably. You can usually fix this by removing a shim from shaft after removing the outer clutch plate.
If your fans do not blow at high speed open the fuse box behind the battery and pull out the yellow relays one by one. Inspect them for brown discoloration and replace any damaged ones. These relays are a common cause of blower trouble.
If your system is adjustable on one side, but not the other – meaning one side is stuck on hot, cold, or somewhere in between you probably have a bad servo motor set. Land Rover sells these servos in sets of three (left, right, and center blend). A VERY resourceful owner could replace these items at home, but most people will do better to find a specialist. This repair takes most of a day to complete."
Joe, best of luck with this.
Regards,
JohnMc
*for Disco II owners reading this...
Here's how to read AC codes:
1. Switch the ignition OFF
2. Press and hold AUTO and AIR DISTRIBUTION
3. While holding these buttons switch the ignition ON. The fault codes will flash in the left hand window of the climate control panel.
Here are the possible codes:
00 – No fault
11 – in car temp sensor fault
12 – ambient temp sensor fault
13 – thermistor fault
14 – heater coolant temp sensor fault
21 – sunlight sensor left side fault
22 – sunlight sensor right side fault
31 – left hand temp control servo fault
32 – right hand temp control servo fault
33 – air distribution servo motor fault
