2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1813
P0638
* The ignition is ON or the engine is operating.
* The ignition voltage is greater than 8 V.
* The engine speed is greater than 400 rpm.
* The engine coolant temperature (ECT) is greater than 5掳C (41掳F).
* The intake air temperature (IAT) is 5掳C (41掳F).
* Throttle position adaptation is not active.
* DTCs P0638 run continuously once the above conditions are met for greater than 5 s.
P2100-P2103
* The ignition voltage is greater than 8 V.
* The ignition is ON or the engine is operating.
* DTC P2100-P2103 runs continuously once the above conditions are met.
P2119
* DTC P0111, P0112, P0113, P0116, P0117, P0118, P0119, P0700, P2122, P2123, P2127, P2128, or P2138 is not set.
* The vehicle speed is 0 km/h (0 mph).
* The engine speed is less than 250 RPM.
* The engine coolant temperature (ECT) is 5-85掳C (41-185掳F).
* The intake air temperature (IAT) is 5-60掳C (41-140掳F).
* The ignition voltage is greater than 8 V.
* The accelerator pedal position (APP) is less than 15 percent.
* DTC P2119 runs once per ignition cycle when the above conditions are met for less than 1 s.
Conditions for Setting the DTC
P0638
* The ECM detects that the commanded duty cycle for the range test high is greater than 80 percent for greater than 1 s.
OR
* The ECM detects that the commanded duty cycle for the range test low is greater than 80 percent for greater than 5 s.
P2100
The ECM detects the output circuit for the TAC motor is open, shorted to ground, or shorted to a voltage. The condition exists fro greater than 1 s.
P2101
The ECM detects a 4-50 percent difference between the commanded and the actual throttle plate position, dependant upon the rate of commanded
throttle movement. The condition exists for 1 s.
P2102
The ECM detects an overheat condition with the output driver. The condition exists for 1 s.
P2103
The ECM detects an over load condition with the output driver. The condition exists for 1 s.
P2119
The ECM determines that the throttle valve did not return to the rest position within 1 s. The condition exists for greater than 1 s, or a cumulative of
10 s.
Action Taken When the DTC Sets
DTCs P0638, P2100, P2101, P2102, P2103, and P2119 are Type A DTCs.
Conditions for Clearing the DTC
DTCs P0638, P2100, P2101, P2102, P2103, and P2119 are Type A DTCs.
Diagnostic Aids
Inspect for a condition in which the throttle valve may have been held open. For example, ice may have formed in the throttle bore causing the
throttle valve not to close.
