Description
DTC B1049 - B1052, B1054 - B1057 DRIVER AIRBAG MODULE
The driver air bag module is dual stage and wired to the air bag diagnosis
sensor unit through the spiral cable.
The air bag diagnosis sensor unit will
monitor for opens and shorts in detected lines to the driver air bag module
including the spiral cable.
PART LOCATION
DTC Logic
DTC DETECTION LOGIC
With CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
NOTE:
SRS will not enter diagnosis mode if
no malfunction is detected in user mode.
Diagnosis Procedure
1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
NOTE:
All harness connectors should be
inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
2.CONFIRM DTC
3.WIRING HARNESS
Check the wiring harness for visible damage.
NOTE:
The entire wiring harness should be
inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
4.CHECK SPIRAL CABLE CIRCUIT
5.CONFIRM DTC
6.AIR BAG DIAGNOSIS SENSOR UNIT
7.FRONT DRIVER AIR BAG MODULE
8.RELATED HARNESS
Replace the related harness.
ECU diagnosis information
A/C AUTO AMP
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CONSULT MONITOR ITEM
A/C AUTO AMP. HARNESS CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR A/C AUTO AMP.
Fail-Safe
FAIL-SAFE FUNCTION
If a communication error exists between the A/C auto amp., the AV
...
ECU diagnosis information
TCM
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safe
The TCM has an electrical fail-safe mode. In this mode
TCM operates even if there is an error in a main electronic
control input/output signal circuit.
FAIL-SAFE FUNCTION
If any malf ...
P1801 vias control solenoid valve 2
Description
The VIAS control solenoid valve 2 cuts the intake manifold vacuum signal for
power valve 2 control. It
responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum
signal from the intake
manifold is cut. When the ECM sends an ON signal the coil pulls the plunger ...