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Home >> Isuzu >> 2002 >> Axiom Base, RWD >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Air Bag Restraint Systems >> Diagnostic Tests >> SRS Diagnostic System Check >> Diagnostic Procedure

Diagnostic Procedure

  1. Observe AIR BAG warning light when turning ignition on. If AIR BAG warning light flashes 7 times, go to next step. If AIR BAG warning light does not flash 7 times, go to step  3.
  2. If AIR BAG warning light turns off after flashing 7 times, go to step  4. If light stays on, go to step  5.
  3. If AIR BAG warning light comes on steady when ignition is turned on, go to AIR BAG WARNING LIGHT COMES ON STEADY . If AIR BAG warning light does not come on steady, go to AIR BAG WARNING LIGHT DOES NOT COME ON STEADY .
  4. Turn ignition off. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Turn ignition on. Request SRS DTC display and record all history DTC's. Turn ignition off. If DTC 71 is displayed as a history DTC, see DTC 71: INTERNAL SDM FAULT . For all other history DTC's, refer to diagnostic aids for specific displayed DTC. See DIAGNOSTIC TROUBLE CODES (DTC)  table. A history DTC indicates malfunction has been repaired or is intermittent. If no DTC's are displayed, SRS is functional and free of malfunctions. No further diagnosis is required.
  5. Turn ignition off. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Turn ignition on. Request SRS DTC display and record all history DTC's. Turn ignition off. If DTC's 19, 25, 51 or 53 are set, refer to diagnostic aids for specific displayed DTC. See DIAGNOSTIC TROUBLE CODES (DTC)  table. Diagnose remaining current DTC's in order from lowest to highest. If only history DTC's exist, refer to diagnostic aids for specific DTC. See DIAGNOSTIC TROUBLE CODES (DTC)  table. A history DTC indicates malfunction has been repaired or is intermittent.
DIAGNOSTIC TROUBLE CODES (DTC)

Trouble Code Possible Cause
15  Passenger deployment loop resistance high
16  Passenger deployment loop resistance low
17  Passenger deployment loop open
18  Passenger deployment loop short to ground
19  Passenger deployment loop short to voltage
21  Driver deployment loop resistance high
22  Driver deployment loop resistance low
24  Driver deployment loop short to ground
25  Driver deployment loop short to voltage
26  Driver deployment loop open
51  Deployment event commanded
53  Deployment commanded with deployment loop fault or energy reserves out of range
61  Warning light circuit failure
71  Internal SDM fault
Fig 1: SRS Connector & Terminal Identification
G98A08100Courtesy of ISUZU MOTOR CO.