B1334
DTC B1334
CIRCUIT DESCRIPTION
The right air temperature switch assembly is a sliding potentiometer with detents that correspond to fixed resistance values. The instrument panel integration module (IPM) supplies 5 volts to the right air temperature switch signal circuit and provides a low reference circuit. The IPM determines which switch position has been selected by the voltage drop across the corresponding resistance value.
DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B1334 Right Air Temperature Switch Assembly
CONDITIONS FOR RUNNING THE DTC
The ignition is turned ON.
CONDITIONS FOR SETTING THE DTC
The IPM detects that the right air temperature switch signal circuit is less than 0.09 volts (5 counts) or greater than 4.90 volts (250 counts).
ACTION TAKEN WHEN THE DTC SETS
The IPM will ignore the right air temperature switch assembly. The data displayed on the scan tool, 3.19 volts (163 counts) in the HVAC System Data list, will be the default value.
CONDITIONS FOR CLEARING THE DTC
- The DTC will become history if the IPM no longer detects a failure.
- The history DTC will clear after 50 fault-free ignition cycles.
- The DTC can be cleared by using a scan tool.
DIAGNOSTIC AIDS
Diagnostic Aids:
TEST
