Toyota Corolla (E120): Short in p/t squib (lh) circuit (to ground)

Dtc b0137/71 short in p/t squib (lh) circuit (to ground)

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Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

Starting system
Inspection 1. Inspect starter assy Notice: these tests must be performed within 3 to 5 seconds to prevent burnout of the coil.  perform the pull–in test.  Remove the nut, then disconnect the lead wire from terminal c. Connect the battery to the starter repai ...

Timing gear cover oil seal
Replacement 1. Remove engine under cover rh 2. Remove front wheel rh 3. Remove fan and generator v belt Turn the v–ribbed belt tensioner slowly clockwise and loosen it. Then, remove the fan and generator belt v and put back the v–ribbed belt tensioner little by little and fix it ...