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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Lighting Systems) >> Diagnostic Information and Procedures >> Hazard Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, individually operate both the left and right turn signals. All applicable lamps should flash when in each turn signal position.
  2. Observe the scan tool Hazard Lamp Switch parameter while cycling the hazard switch. The parameter should change between Active and Inactive.
    • If the parameter does not cycle between the specified values, refer to Circuit/System Testing.
  3. Press the hazard switch. All applicable lamps should flash.
    • If one or more lamps do not flash, replace the BCM.
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