A/C Compressor Shut Off Codes (TT 87-07-93)

Publication date: 2007-01-01
Reference number: TT 87-07-93

A/C COMPRESSOR SHUT OFF CODES

TECH TIPS

Reference Number(s): TT 87-07-93

VOLKSWAGEN:	2004> Touareg, Phaeton; 2006> Passat, Jetta, GTI; 2007 Rabbit, EOS
GROUP:	87 - Air Conditioning

SERVICE INFORMATION

2004> Touareg, Phaeton; 2006> Passat, Jetta, GTI; 2007 Rabbit, EOS - A/C Compressor Shut Off Codes

If the A/C compressor is commanded "off" by the control head for any reason, it may trigger a shut off code in a MVB. Check MVB 13 field 1 for Touareg and Phaeton systems and MVB 1 field 1 for all other vehicles listed. This includes 2006 and up Climatic systems. See chart below for explanation of these codes to aid with diagnosis of the system.

A/C cut-off Codes

0 = Compressor on (no shut-off requirement of the A/C compressor detected)
1 = Compressor off (refrigerant pressure was or is too high)
2 = Compressor off (blower motor circuit)
3 = Compressor off (refrigerant pressure was or is too low)
4 = Compressor off (display not currently intended)
5 = Compressor off (no engine start or no engine speed detected)
6 = Compressor off (A/C system switched off, ECON-mode activated)
7 = Compressor off (A/C system switched off, blower switch in position 0)
8 = Compressor off (outside temperature was less than 1.5°C and is still less than 2.5 °C)
9 = Compressor off (display not currently intended)
10 = Compressor off (Low voltage)
11 = Compressor off (display not currently intended)
12 = Compressor off (shut-off request from Engine Control Module (ECM) via CAN)
13 = Compressor off (voltage supply terminal 30 too high)
14 = Compressor off (Evaporator Temperature)
15 = Compressor off (display not currently intended)
16 = Compressor off (activation A/C Compressor Regulator Valve -N280- implausible)
17 = Compressor off (no signal or implausible signal from High Pressure Sensor -G65-)
18 = Compressor off (engine speed too high at standstill)
19 = Compressor off (shutoff request from Vehicle Electrical System Control Module via CAN)
20 = Compressor off (refrigerant loss-currently V8 Touareg only)
21 = Compressor off (Outside Temp < 2 degrees C, without recirc mode on)
22 = Compressor off (Outside Temp < 2 degrees C, Inside Temp. < 10 degrees C)