Heater Unit Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/ recycling/ charging station.
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Component Location
1. Rear glass defogger relay (Engine room relay
box)
2. Rear glass defogger switch (A/C controller)
3. Rear glass defogger
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Relay Box (Passenger Compartment) Inspection
1.
The SJB can be diagnosed by using the GDS. The SJB communicates
with the GDS which then displays inputs and outputs along with codes.
2.
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