Description
The mass air flow sensor (1) is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. The mass air flow sensor controls the temperature of the hot wire to a certain amount. The heat generated by the hot wire is reduced as the intake air flows around it. The greater air flow, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to maintain the temperature of the hot wire as air flow increases. The ECM detects the air flow by means of this current change.
DTC Logic
DTC DETECTION LOGIC
NOTE: If DTC P0101 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test.
2.PERFORM DTC CONFIRMATION PROCEDURE
CAUTION: Always drive vehicle at safe speed.
NOTE:
Diagnosis Procedure
1.CHECK INTAKE SYSTEM
Check the following for connection.
2.CHECK GROUND CONNECTION
3.CHECK MASS AIR FLOW (MAF) SENSOR POWER SUPPLY CIRCUIT
4.DETECT MALFUNCTIONING PART
Check the following.
5.CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
6.CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
7.CHECK INTAKE AIR TEMPERATURE SENSOR
Check intake air temperature sensor.
8.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check EVAP control system pressure sensor.
9.CHECK MAF SENSOR
Check MAF sensor
10.CHECK INTERMITTENT INCIDENT
Check intermittent incident
Component Inspection
1.CHECK MASS AIR FLOW SENSOR-I
With CONSULT
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
2.CHECK FOR THE CAUSE OF UNEVEN AIR FLOW VIA THE MASS AIR FLOW SENSOR
Check for the cause of uneven air flow via the mass air flow sensor. Refer to the following.
3.CHECK MASS AIR FLOW SENSOR-II
With CONSULT
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
4.CHECK MASS AIR FLOW SENSOR-III
With CONSULT
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm
Center speaker
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio signals before sending them to the center speaker
using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker conne ...
Steering switch
Removal and Installation
REMOVAL
Remove the driver airbag module. Refer to SR-12, "Removal and
Installation".
Remove the steering wheel audio control switch screws (A).
Release the steering wheel audio control switch harness clips
(B).
Remove the steering wheel audio control switc ...
Manual shift mode
The transmission enters the manual shift mode by
moving the shift lever to the left side in the "D"
range. You can select the manual shift range
either by moving the shift lever up or down, or by
pulling the right-side or left-side paddle shifter (if
so equipped). To cancel the manual shift ...