AIRBAG SYSTEM (DIAGNOSTICS) > General Description
PREPARATION TOOL
CAUTION:
To measure the voltage and resistance of airbag system component, be sure to use the specified test harness.
1. SPECIAL TOOL
• SUBARU SELECT MONITOR
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

—
SUBARU SELECT MONITOR 4
Used for setting of each function and troubleshooting for electrical system.
NOTE:
For detailed operation procedures of Subaru Select Monitor 4, refer to “Application help”.
• TEST HARNESS H
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299FA030
TEST HARNESS H
Used when measuring voltage and resistance of front sub sensor and front door impact sensor.

• TEST HARNESS N
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299SA000
TEST HARNESS N
Used when measuring voltage and resistance of driver’s airbag module, seat belt pretensioner and curtain airbag module.

• TEST HARNESS Q
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299SA040
TEST HARNESS Q
Used when measuring voltage and resistance of driver’s airbag module.

• TEST HARNESS AG
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299AG070
TEST HARNESS AG
Used when measuring voltage and resistance of airbag control module.


• TEST HARNESS V
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299AG010
TEST HARNESS V
Used when measuring voltage and resistance of side airbag sensor and curtain airbag sensor.

• AIRBAG RESISTOR
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299PA040
AIRBAG RESISTOR
Used in replacement of airbag module for which resistance value is same as airbag module.
Two STs are required for diagnosis of two-stage inflator type airbag module.

• TEST HARNESS AJ
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299FG000
TEST HARNESS AJ
Used when measuring power supply and resistance of side airbag harness.

• TEST HARNESS AI
ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS |

98299AG090
TEST HARNESS AI
• Used for diagnoses of side airbag sensor and curtain airbag sensor.
• Used together with test harness V.

2. GENERAL TOOL
TOOL NAME | REMARKS |
Circuit tester | Used for measuring resistance, voltage and current. |
Probe | Used when measuring voltage and resistance of passenger’s airbag module. |
DST-i | Used together with Subaru Select Monitor 4. |
3. HOW TO USE PROBE
Insert the probe into the harness hole, and contact it with the terminal.

(A) | Cross section | ||||
(1) | Probe | (3) | Harness | (5) | Connection |
(2) | Connector (housing) | (4) | Terminal |
CAUTION:
• Do not insert the probe forcibly.
• Be careful not to contact it to the connection (5) between the terminal and harness. (Harness will come off easily from connector if doing so.)
Caution
InspectionRange of Surround View Monitor
Camera to be used
Range of displayed image
Front camera
Side camera (right-hand side)
Rear camera
Side camera (left-hand side)
Approx. 6 ft (2 m) from the vehicle
Vehicle overall length
Approx. 8 ft (2.5 m) from the vehicle
Vehicle overall width
In the Subaru Ascent, ...
Inspection
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Manifold Absolute Pressure SensorINSPECTION1. Check that the manifold absolute pressure sensor has no deformation, cracks or other damages.2. Connect dry-cell battery positive terminal to terminal No. 3 and dry-cell battery ground terminal to terminal No. 1, ...
Power saving function
The keyless access function will be
disabled in the following cases to protect
the access key battery and the vehicle
battery.
Case 1: When the keyless access function and the remote keyless entry
system have not been used for 2 weeks
or longer while all doors are locked
To recover the ...