SECOND-ROW SEAT WARMER UNIT INSPECTION
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Simple Inspection
1. Place a cooling agent on the seat cushion (thermistor).
2. Operate the seat warmer switch to turn on the seat warmer.
3. Touch the seat cushion and the seat back to verify a temperature increase.
4. If a temperature increase cannot be verified, go to the resistance inspection. (See Resistance Inspection (6:4 Split Adjustable-Type Bench Type).) (See Resistance Inspection (Captain Seat Type) (R.H.D.).) (See Resistance Inspection (Captain Seat Type) (L.H.D.).)
Resistance Inspection (6:4 Split Adjustable-Type Bench Type)
LH-side
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Seat cushion side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (LH) connector.
4. Inspect for continuity between the second-row seat warmer unit (LH) connector terminal F (R.H.D.)/ I (L.H.D.) and E (R.H.D.)/ L (L.H.D.).
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5. Measure the resistance between the second-row seat warmer unit (LH) connector terminal L (R.H.D.)/ F (L.H.D.) and H, and verify that the condition is as indicated in the table.
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Seat back side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (LH) connector.
4. Inspect for continuity between the second-row seat warmer unit (LH) connector (short cord) terminal A and B.
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RH-side
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Seat cushion side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (RH) connector.
4. Inspect for continuity between the second-row seat warmer unit (RH) connector terminal E (R.H.D.)/ F (L.H.D.) and L (R.H.D.)/ E (L.H.D.).
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5. Measure the resistance between the second-row seat warmer unit (RH) connector terminal B (R.H.D.)/ L (L.H.D.) and D (R.H.D.)/ H (L.H.D.), and verify that the condition is as indicated in the table.
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Seat back side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (RH) connector.
4. Inspect for continuity between the second-row seat warmer unit (RH) connector (short cord) terminal A and B.
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Resistance Inspection (Captain Seat Type) (R.H.D.)
LH-side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (LH) connector.
4. Inspect for continuity between the second-row seat warmer unit (LH) connector terminal A and O.
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5. Measure the resistance between the second-row seat warmer unit (LH) connector terminal L and K , and verify that the condition is as indicated in the table.
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RH-side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (RH) connector.
4. Inspect for continuity between the second-row seat warmer unit (RH) connector terminal N and B.
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5. Measure the resistance between the second-row seat warmer unit (RH) connector terminal M and D, and verify that the condition is as indicated in the table.
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Resistance Inspection (Captain Seat Type) (L.H.D.)
LH-side
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Seat cushion side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (LH) (seat cushion side) connector.
4. Inspect for continuity between the second-row seat warmer unit (LH) (seat cushion side) connector terminal B and D.
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5. Measure the resistance between the second-row seat warmer unit (LH) (seat cushion side) connector terminal A and C , and verify that the condition is as indicated in the table.
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Seat back side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (LH) (seat back side) connector.
4. Inspect for continuity between the second-row seat warmer unit (LH) (seat back side) connector terminal A and B.
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RH-side
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Seat cushion side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (RH) (seat cushion side) connector.
4. Inspect for continuity between the second-row seat warmer unit (RH) (seat cushion side) connector terminal B and D.
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5. Measure the resistance between the second-row seat warmer unit (RH) connector terminal A and C, and verify that the condition is as indicated in the table.
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Seat back side
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1. Switch the ignition to off.
3. Disconnect the second-row seat warmer unit (RH) (seat back side) connector.
4. Inspect for continuity between the second-row seat warmer unit (RH) (seat back side) connector terminal A and B.
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