|
Diagnostic trouble code
|
Display
|
Defective function/component
|
Malfunction
|
Test frequency
|
Diagnostic procedure, see page
|
B1340
|
03
|
Solar sensor
|
Open circuit or communication error
|
With 2.5 Hz
|
|
B1345
|
04
|
Mixed-air temperature sensor, LH
|
Open circuit or short to B+
|
With 2.5 Hz
|
|
B1345
|
04
|
Mixed-air temperature sensor, LH
|
Short-circuit to ground
|
With 2.5 Hz
|
|
B1350
|
02
|
Cabin temperature sensor
|
Open circuit or short to B+
|
With 2.5 Hz
|
|
B1350
|
02
|
Cabin temperature sensor
|
Short-circuit to ground
|
With 2.5 Hz
|
|
B1605
|
01
|
Control module
|
Internal control module malfunction
|
With ignition ON
|
|
B2290
|
09
|
Stepping motor, air-mixing flap, RH
|
Open circuit
|
Continuously
|
|
B2290
|
09
|
Stepping motor, air-mixing flap, RH
|
Short-circuit to ground
|
Continuously
|
|
B2295
|
08
|
Stepping motor, air-mixing flap, RH
|
Loose flap
|
Continuously
|
|
B2296
|
10
|
Stepping motor, air-mixing flap, RH
|
Jammed flap
|
Continuously
|
|
B2345
|
05
|
Mixed-air temperature sensor, RH
|
Short-circuit to ground
|
With 2.5 Hz
|
|
B2345
|
05
|
Mixed-air temperature sensor, RH
|
Open circuit or short to B+
|
With 2.5 Hz
|
|
B2375
|
18
|
Heat exchanger solenoid
|
Open circuit, short-circuit to ground
|
With 2.5 Hz
|
|
B2375
|
18
|
Heat exchanger solenoid
|
Short-circuit to B+
|
With 2.5 Hz
|
|
B2380
|
19
|
Circulation pump
|
Open circuit, short-circuit to ground
|
With 2.5 Hz
|
|
B2380
|
19
|
Circulation pump
|
Short-circuit to B+
|
With 2.5 Hz
|
|
B2400
|
12
|
Stepping motor, air distribution flap
|
Open circuit
|
Continuously
|
|
B2400
|
12
|
Stepping motor, air distribution flap
|
Short-circuit to ground
|
Continuously
|
|
B2405
|
14
|
Stepping motor, air distribution flap
|
Loose flap
|
Continuously
|
|
B2406
|
13
|
Stepping motor, air distribution flap
|
Jammed flap
|
Continuously
|
|
B2410
|
21
|
Direct current motor, air recirculation flap
|
B+ open circuit or shorted to ground
|
With 2.5 Hz
|
|
B2425
|
20
|
Control voltage, fan
|
Short-circuit to B+
|
Continuously
|
|
B2425
|
20
|
Control voltage, fan
|
Short-circuit to ground
|
Continuously
|
|
B2490
|
06
|
Stepping motor, air-mixing flap, LH
|
Open circuit, short to B+ or short to ground
|
Continuously
|
|
B2495
|
08
|
Stepping motor, air-mixing flap, LH
|
Loose flap
|
Continuously
|
|
B2496
|
07
|
Stepping motor, air-mixing flap, LH
|
Jammed flap
|
Continuously
|
|
B2945
|
23
|
Sensor ground
|
Ground to sensors shorting to B+
|
At 2.5 Hz
|
|
