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Diagnosis Procedure
1.CHECK FRONT SEAT HEATER LH GROUND CIRCUIT (OPEN)
  1. Electric motor switch OFF.
  2. Disconnect front seat heater LH connector.
  3. Check continuity between front seat heater LH harness connector and ground.
    Front seat heater LH–Continuity
    ConnectorTerminal
    B515 <Without automatic drive positioner>2GroundExisted
    B516 <With automatic drive positioner>13
Is the inspection result normal?
Repair the harness or connector.
 
2.CHECK FRONT SEATBACK HEATER LH CIRCUIT (OPEN)
Check continuity between front seatback heater LH harness connector and front seat heater LH harness connector.
Front seatback heater LHFront seat heater LHContinuity
ConnectorTerminalConnectorTerminal
B2092B515 <Without automatic drive positioner>2Existed
B516 <Without automatic drive positioner>13
Is the inspection result normal?
Replace seat cushion pad. Refer to Disassembly and Assembly.
 
3.CHECK FRONT SEATBACK HEATER LH GROUND CIRCUIT (OPEN)
  1. Disconnect front seatback heater LH connector.
  2. Check continuity between front seatback heater LH harness connector and front seat heater LH harness connector.
    Front seatback heater LHFront seat heater LHContinuity
    ConnectorTerminalConnectorTerminal
    B2091B515 <Without automatic drive positioner>2Existed
    B516 <Without automatic drive positioner>13
Is the inspection result normal?
Replace seatback pad. Refer to Disassembly and Assembly.
Replace seat cushion pad. Refer to Disassembly and Assembly.