A/C blinking lights...
 

Hi, when I start my 95 850 Turbo station wagon, the lights on the REC and A/C knobs start flashing for a little while, is this normal?, I start the A/C and the lights stop flashing, I'm not sure if this is normal, thanks...[sm=feedback.gif]

RE: A/C blinking lights...
 

No it's not normal - it indicates there is a fault with the climate control system. You'll need to pull the codes to find out what the problem is.

Does you car have a coin holder in front of the gear knob which says OBD2 on it? If so you'll have to get a scanner to read the codes, or get a stealer to do it, if not you can read the codes off under the bonnet.

Have a quick search around on this forum as I've asked this question as well and the folk who answered were far morer qualified to answer than myself.

hth
Iain

RE: A/C blinking lights...
 

Even though you might have a OBDII port under the dash it is not fully functional, that did not happen until 1996. You should still have DTC box behind the passenger headlight. I think the only exception to this was R's, someone correct me if I am wrong. Cava, is there any problems noticed with your system? If not, then your codes will probably be something like 414 or 417 which is either driver & passenger side Temp sensor fan seized, pretty common. Easy fix usually, they are located behing the handles above each door, remove blow out, reinstall... Should be good to go!! Pull codes and report back if thats not what you pull(414 or 417). Here is a list of DTC codes.

ENTERING SELF-DIAGNOSTICS
1) Connect selector cable from diagnostic unit "A" to
terminal No. 1 of diagnostic unit "B", located behind right headlight.
2) Turn ignition on. LED on diagnostic unit "A" should start
flashing. Each DTC (3-digits) consists of a series of flashes with a
short break between each series. DTCs are displayed in ascending
order. See AUTOMATIC A/C-HEATER SYSTEM DIAGNOSTIC TROUBLE CODES table.
Courtesy of Volvo Cars of North America.
AUTOMATIC A/C-HEATER SYSTEM DIAGNOSTIC TROUBLE CODES
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Code # Condition/Affected Circuit
1-1-1 ..................... No Fault Found By Diagnostic System
1-2-1 .......... Outside Temp. Sensor Circuit Shorted To Ground
1-2-2 .................................... Outside Temp. Sensor
Circuit Open Or Shorted To Power
1-2-3 .... Driver’s Side Temp. Sensor Circuit Shorted To Ground
1-2-4 .............................. Driver’s Side Temp. Sensor
Circuit Open Or Shorted To Power
1-2-5 ....... Pass. Side Temp. Sensor Circuit Shorted To Ground
1-2-6 ................................. Pass. Side Temp. Sensor
Circuit Open Or Shorted To Power
1-3-1 ....... Driver’s Side Duct Temp. Sensor Shorted To Ground
1-3-2 ......................... Driver’s Side Duct Temp. Sensor
Circuit Open Or Shorted To Power
1-3-3 .......... Pass. Side Duct Temp. Sensor Shorted To Ground
1-3-4 ............................ Pass. Side Duct Temp. Sensor
Circuit Open Or Shorted To Power
1-3-5 ........................ No Engine Temp. Frequency Signal
1-4-1 ........ Driver’s Side Temp. Switch Faulty Control Signal
1-4-3 ........... Pass. Side Temp. Switch Faulty Control Signal
1-4-5 ........... Air Distribution Switch Faulty Control Signal
1-5-1 ..... Fan Speed Sensor Control Signal Missing Or Too High
1-5-2 ....... Fan Speed Sensor Control Signal Shorted to Ground
2-1-1 .............. Driver’s Side Damper Motor Position Sensor
Circuit Open Or Shorted To Power
2-1-2 .............. Driver’s Side Damper Motor Position Sensor
Shorted To Ground
2-2-1 ................. Pass. Side Damper Motor Position Sensor
Circuit Open Or Shorted To Power
2-2-2 ................. Pass. Side Damper Motor Position Sensor
Shorted To Ground
2-3-1 ................ Ventilation Damper Motor Position Sensor
Circuit Open Or Shorted To Power
2-3-2 ................ Ventilation Damper Motor Position Sensor
Shorted To Ground
2-3-3 .............. Floor/Defrost Damper Motor Position Sensor
Circuit Open Or Short To Power
2-3-4 .............. Floor/Defrost Damper Motor Position Sensor
Shorted To Ground
2-3-5 .............. Recirculation Damper Motor Position Sensor
Circuit Open Or Short To Power
2-3-6 ..................... Recirculation Damper Motor Position
Sensor Shorted To Ground
3-1-1 ... Driver’s Side Damper Motor Shorted To Ground Or Power
3-1-2 ...... Pass. Side Damper Motor Shorted To Ground Or Power
3-1-3 ..... Ventilation Damper Motor Shorted To Ground Or Power
3-1-4 ... Floor/Defrost Damper Motor Shorted To Ground Or Power
3-1-5 ... Recirculation Damper Motor Shorted To Ground Or Power
3-2-1 .............. Driver’s Side Damper Motor Active Too Long
3-2-2 ................. Pass. Side Damper Motor Active Too Long
3-2-3 ................ Ventilation Damper Motor Active Too Long
3-2-4 .............. Floor/Defrost Damper Motor Active Too Long
3-2-5 .............. Recirculation Damper Motor Active Too Long
4-1-1 ......... Pass. Compartment Fan Overcurrent Or Seized Fan
4-1-2 .............................. Driver’s Side Temp. Sensor
Intake Fan Shorted To Ground
4-1-3 .............................. Driver’s Side Temp. Sensor
Intake Fan, No Control Voltage
4-1-4 ............ Driver’s Side Temp. Sensor Intake Fan Seized
4-1-5 .... Pass. Side Temp. Sensor Intake Fan Shorted To Ground
4-1-6 .. Pass. Side Temp. Sensor Intake Fan, No Control Voltage
4-1-7 ............... Pass. Side Temp. Sensor Intake Fan Seized
4-1-8 .................... No Control Signal To ECC Power Stage
4-1-9 ....... ECC Power Stage Emitting Faulty Diagnostic Signal
4-2-0 ................ ECC Control Module Fault, Program Memory
5-1-1 ......................... Self-Adjustment Of Damper Motor
Limit Positions Not Carried Out

Good Luck

RE: A/C blinking lights...
 

There's no diagnostic box on my 95 T5.

RE: A/C blinking lights...
 

Nor on my GLT which was first registered on 1st. December 1995 but is a 1996 model.

OBD2 makes life difficult.

RE: A/C blinking lights...
 

Usually its the interior temp sensors. It's located by the oh **** bars in front. You'll see a hole where air breaths through. Inside is a stepper motor that blows air thourgh a sensor which is constructed of fine, brittle wire, in a coil. What happens is, either the wire is broken (split) or too much dust is inside. What I usually do is, take an air can and gently blow inside, cleaning it. See if that helps.