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(Checking the driver’s seat belt pre-tensioner (squib)) (see p.52B-34) • Connect the dummy resistor (MB991865) to the resistor harness (MB 991884) • Connect the resistor harness (MB991884) to the harness side of the driver’s seat belt pre-tensioner connector D-02 • Connect the (–) terminal of the battery diagnosis code. Is Code No.27 output? SRS AIRBAGS – TROUBLESHOOTING 52B-17 Replace the SRS-ECU Replace the driver’s seat belt pre-tensioner Check connectors: C-124, D-02, C-116 Check the harness between the driver’s seat belt Confirm the fault symptoms Code No. 27 Driver’s seat belt pre-tensioner (squib) system Possible cause seat belt pre-tensioner (squib) circuit of the SRS-ECU. • Connector contact fault tensioner (squib) circuit • SRS-ECU fault Dummy resistor Resistor harness D-02 Driver’s seat belt pre-tensioner (Checking the circuit between the SRS-ECU and the harness side • Detach the driver’s seat belt pre-tensioner connector D-02 (see p.52B-34), and connect the resistor harness • Check connectivity between the following terminals. C-124 connector Resistor harness Connector 29 1 30 2 Caution OK: Connectivity (2Ω max.) C-124 connector Resistor harness connector NO OK NG NG Repair YES OK NG |