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The heated seat relay cannot be repaired or adjusted and, if faulty or damaged, it must be OPERATION The ISO relay consists of an electromagnetic coil, a resistor or diode, and three (two fixed and one mov- DIAGNOSIS AND TESTING - HEATED SEAT The heated seat relay is located in the Fuse Block, under the drivers seat. Refer to Wiring for the loca- (1) Remove the heated seat relay from the fuse block. (2) A relay in the de-energized position should have continuity between terminals 87A and 30, and (3) Resistance between terminals 85 and 86 (elec- tromagnet) should be 75 ± 5 ohms. If OK, go to Step (4) Connect a battery to terminals 85 and 86. There should now be continuity between terminals REMOVAL (1) Disconnect and isolate the battery negative cable. (2) The heated seat relay is located in the fuse block, under the drivers seat. Refer to wiring for (3) Grasp the heated seat relay firmly and pull it straight out from the fuse block. A slight rocking INSTALLATION (1) Grasp the heated seat relay firmly and push it straight in the fuse block. (2) Reconnect the battery negative cable. HEATED SEAT SENSOR DESCRIPTION The heated seat temperature sensor is a Negative Temperature Coefficient (NTC) thermistor. One tem- The heated seat sensor cannot be adjusted or repaired and if it is found to be faulty, the complete DIAGNOSIS AND TESTING - HEATED SEAT For complete circuit diagrams, refer to Wiring. NOTE: Any resistance values (ohms V ) given in the following text are supplied using the automatic T automotive meter. If another type of measuring device is used the val- (1) Backprobe the heated seat relay wire harness connector, do not disconnect. Using an voltmeter, PASSENGER HEATED SEAT DESCRIPTION The heated seat switches are located on the instru- ment panel, in the accessory switch bezel. The two, The heated seat switches and their LED’s cannot be repaired. If either switch is faulty or damaged the OPERATION There are three modes that can be selected with each of the heated seat switches: Off, Low, and High. VA HEATED SEATS 8G - 13 |