Power Transistor - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

10C-50
Inspection
When the air mix door motor error displays, check the
followings;
1. Turn the ignition ON.
2. Measure the voltage within P1, P2 terminals (specified
value: 12 V) and a,b (specified value: 5).
3. If the value is outside the specified value, check the
open or short circuit.
4. If the wiring is normal, replace the Mtr-Act, Temp.
5. If the (+) (-) terminal connects to P1 and P2 of the
Mtr-Act, Temp alternately, the output by the each
mode is following;
AMD Mode
Cool P1 (-), P2 (+)
Hot P1 (+), P2 (-)
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN

Power Transistor

Power transistor controls the blower airflow and it receives
the airflow control signal from the AUTO temperature con-
trol in order to for blower motor to shift the speed without
step by adding the current to the power transistor basic
current.
Inspection
When the power transistor error displays, check the
followings.
1. Turn the ignition ON.
2. Measure the voltage between blower connectors by
3. The voltage value by each step is the followings;
Bc Resistance
Below 300 Ω
4. If the value is outside the specified value, check the
Above 2.4 KΩ
1st
4.5 V
5. When there is no problem in the wiring harness,
changing the step from 1st to 6th.
(specified value: 0.5)
open or short circuit.
2nd 3rd
6.0 V 7.5 V 9.0 V
replace the power transistor.
4th 5th 6th
11.0 V Relay Hi
A/C SYSTEM
REXTON SM - 2004.4