Subaru Crosstrek Service Manual: Basic procedures
WIRING SYSTEM > Basic Diagnostic Procedure
BASIC PROCEDURES
1. GENERAL DESCRIPTION
The most important purpose of diagnostics is to quickly determine which part is malfunctioning, to save time and labor.
2. IDENTIFICATION OF TROUBLE SYMPTOM
Determine what the problem is based on the symptom.
3. PROBABLE CAUSE OF TROUBLE
Look at the wiring diagram and check the system’s circuit. Then check the switch, relay, fuse, ground, etc.
4. LOCATION AND REPAIR OF TROUBLE
1. Using the diagnostics, narrow down the causes.
2. If necessary, use a voltmeter, ohmmeter, etc.
3. Before replacing certain component parts (switch, relay, etc.), check the power supply, ground, for open wiring harness, poor connectors, etc. If no problem is encountered, check the component parts.
5. SYSTEM OPERATION CHECK
After repairing, ensure that the system operates properly.
Connector symbol in wiring harness
WIRING SYSTEM > Basic Diagnostic ProcedureCONNECTOR SYMBOL IN WIRING HARNESSA number of connector symbols are used in each wiring diagram to easily identify the wiring harness connectors. ...
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Electrical specification
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Installation
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Dtc b1826 open in side airbag lh
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1826 OPEN IN SIDE AIRBAG LHDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Side airbag harness (LH) circuit is open.• Side airbag module (LH) is faulty.• Airbag control modu ...
