ACC error codes

Error codes for ACC in the Saab 9-5, old generation.

A calibration of the ACC system is done by first starting the engine, and then hold the AUTO and OFF at the same time on the ACC unit. The calibration takes about 30 seconds. A calibration must be performed after the battery has been disconnected. If the battery has been disconnected less than 10 minutes, for example when changing the battery, it will start a calibration automatically when the car is first started.

After calibration any error codes will show up on the ACC unit. The number to the left shows how many error codes you have and the number to the right shows the actual error code. If you have multiple error codes the will be displayed with a 3 second interval.

Code	Problem	OBD
1	Internal control module malfunction	B1605
2	Cabin temperature sensor – open or short circuit	B1350
3	Solar sensor	B1340
4	Mixed-air temperature sensor, LH – open or short circuit	B1345
5	Mixed-air temperature sensor, RH – open or short circuit	B2345
6	Stepping motor, air-mixing flap, LH – open or short circuit	B2490
7	Stepping motor, air-mixing flap, LH – motor jam	B2496
8	Stepping motor, air-mixing flap, LH – no mechanical contact with flap – Gör-Det-Själv-Guide	B2495
9	Stepping motor, air-mixing flap, RH – open or short circuit	B2290
10	Stepping motor, air-mixing flap, RH – motor jam	B2296
11	Stepping motor, air-mixing flap, RH – no mechanical contact with flap	B2295
12	Stepping motor, air distribution flap – open or short circuit	B2400
13	Stepping motor, air distribution flap – motor jam	B2406
14	Stepping motor, air distribution flap – no mechanical connection between motor and flap	B2405
18	Solenoid valve, heat exchanger shut-off valve – open or short circuit	B2375
19	Circulation pump – open or short circuit	B2380
20	Ventilation fan	B2425
21	DC motor, air recirculation flap – open or short circuit	B2410
22	ACC software – Notering: Inget man behöver bry sig om, om ACC:n fungerar som den ska.
23	Sensor Ground	B2945