Description
COMPONENT DESCRIPTION
Brush-less Motor
The blower motor utilizes a brush-less motor with a rotating magnet.
Quietness is improved over previous motors where the brush was the point of contact and the coil rotated.
Blower Motor Circuit
Component Function Check
1.CHECK OPERATION
Diagnosis Procedure
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010.
2.CHECK WITH ACTIVE TEST OF CONSULT
NOTE: Perform the inspection of each output device after starting the engine because the compressor is operating.
3.CHECK FUSE
Check 15A fuses (Nos. 21 and 22).
4.CHECK POWER SUPPLY FOR BLOWER MOTOR
4 - Ground: Battery voltage
5.CHECK BLOWER MOTOR GROUND CIRCUIT
1 - Ground: Continuity should exist.
6.CHECK BLOWER MOTOR CIRCUIT CONTINUITY
3 - 32: Continuity should exist.
7.CHECK A/C AUTO AMP. OUTPUT SIGNAL
8.REPLACE FUSES
9.CHECK BLOWER MOTOR POWER SUPPLY CIRCUIT FOR SHORT
4 - Ground: Continuity should not exist.
10.CHECK POWER SUPPLY OF THE FRONT BLOWER MOTOR RELAY
2, 3 - Ground: Battery voltage
11.CHECK FRONT BLOWER MOTOR RELAY GROUND CIRCUIT
1 - Ground: Continuity should exist.
12.CHECK BLOWER MOTOR SUPPLY CIRCUIT FOR OPEN
Check continuity between blower motor harness connector M31 terminal 4 and front blower motor relay harness connector J-4 terminal 5.
5 - 4: Continuity should exist.
P0420, P0430 three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen sto ...
Power window serial link
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description
Main power window and door lock/unlock switch, power window and door
lock/unlock switch RH and BCM
communicate via the power window serial link.
The keyless power window down signal is transmitted from BCM to
main power ...
Door switch
Description
Detects door open/close condition.
Component Function Check
1.CHECK FUNCTION
With CONSULT
Check door switches DOOR SW-DR, DOOR SW-AS in Data Monitor mode with CONSULT.
Diagnosis Procedure
1.CHECK DOOR SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Check signal between BCM c ...