Impreza RS Coupe AWD F4-2.5L SOHC (1999)
Impact Sensor: Symptom Related Diagnostic Procedures
31 Front Sub Sensor Harness (RH) Circuit Is Shorted
DIAGNOSIS:
-
Front sub sensor harness (RH) circuit is shorted.
-
Front sub sensor harness (RH) circuit is open.
-
Front sub sensor (RH) is faulty.
-
Airbag control module is faulty.
CAUTION: Before performing diagnostics on airbag system, turn ignition switch "OFF", disconnect battery ground terminal, and then wait atleast 20
seconds.
5K1: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION
1. Disconnect connector (AB6) from airbag control module and connect it to test harness I connector (1I).
2. Measure resistance between test harness I connector (3I) terminal.
CHECK: Is the resistance between 750 Ohms and 1 K Ohms?
YES:
Replace airbag control module.
NO:
Go to step 5K2.
5K2: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION
Measure resistance across test harness I connector (3I) terminal and chassis ground.
CHECK: Is the resistance more than 10 K Ohms?
YES:
Replace airbag control module.
NO:
Go to step 5K3.
5K3: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION
