Description
DTC B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
The air bag diagnosis sensor unit will run self diagnostics when the ignition switch is turned ON. It has the potential to set many diagnostic trouble codes which will conform to the B1XXX format, but will not match any other SRS diagnostic trouble codes. Refer to SRC-18, "CONSULT Function (AIR BAG)".
DTC Logic
DTC DETECTION LOGIC
With CONSULT
CONSULT name |
DTC |
DTC detecting condition |
Repair order |
CONTROL UNIT [UNIT FAIL] | B14XX | Air bag diagnosis sensor unit is malfunctioning. | Refer to SRC-89, "Diagnosis Procedure". |
AIRBAG DISPOSAL COMPLETION |
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
Is the DTC detected? YES (Current DTC)>>Refer to SRC-89, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased? YES >> Inspection End.
NO >> Refer to SRC-89, "Diagnosis Procedure".
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. Is the DTC detected? YES >> Refer to SRC-89, "Diagnosis Procedure".
NO >> Inspection End.
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).
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform one of the following repairs:
2.CONFIRM DTC
Is DTC still current? YES >> GO TO 3.
NO >> Refer to GI-41, "Intermittent Incident".
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).
Is the inspection result normal? YES >> GO TO 4.
NO >> Replace the harness.
4.CONFIRM DTC
Is DTC still current? YES >> GO TO 5.
NO >> Refer to GI-41, "Intermittent Incident".
5.AIR BAG DIAGNOSIS SENSOR UNIT
Is DTC still current? YES >> GO TO 6.
NO >> Clear DTC. Inspection End.
6.RELATED HARNESS
Replace the related harness.
>> END
Side air bag (satellite) sensor
Exploded View
Front door satellite sensor
Front side air bag satellite sensor
Rear side satellite sensor
Satellite sensor harness connector
Bolt
Nut
Pawl
Front
NOTE:
RH side shown, LH side similar.
Removal and Installation
WARNING:
Bef ...
Component parts
Component Parts Location
Engine room (RH)
View with transmission removed
View with engine and transmission removed
Behind instrument panel (LH)
No.
Component part
Description
1
IPDM E/R
CPU inside IPDM E/R operates the starter relay when the ignition
...
C1199 brake booster
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1199
BRAKE BOOSTER
When brake booster vacuum is approx. 0 kPa (0 mm-
Hg) during engine running.
Harness or connector
Vacuum sensor (brake booster)
...