P1835

Diagnostic Chart:

CIRCUIT DESCRIPTION

The Wide Open Throttle (WOT) switch signal circuit pulls up to B+ within the Transmission Control Module (TCM). The switch connects to ground. When you depress the accelerator pedal beyond the equivalent of about a 89% throttle angle, the switch closes, pulling the signal voltage low. The TCM interprets this signal voltage as WOT Active.

CONDITIONS FOR RUNNING THE DTC

^ No Throttle position sensor default values are set.

^ The engine speed is greater than 500 RPM but less than 8160 RPM.

^ The throttle angle is less than 89%.

^ The WOT is Active.

CONDITIONS FOR SETTING THE DTC

^ A DTC P1835 stores.

^ The Kickdown function enables with the throttle limit.

^ The TCM will not illuminate the Malfunction Indicator Lamp (MIL).

ACTION TAKEN WHEN THE DTC SETS

^ The MIL/Service Transmission Lamp (STL) will not illuminate.

^ The TCM memory stores the DTC at the time of the first failure.

CONDITIONS FOR CLEARING THE MIL/DTC

^ A History DTC clears after forty consecutive warm-up cycles if no failures are present by this or any other non-emission related diagnostic.

^ The scan tool clears the MIL/DTC.

DIAGNOSTIC AIDS

Use the Connector Test Adapter Kit J 35616-A for any test that requires probing the TCM harness connector or a component harness connector. Using this kit will prevent damage to the harness connector terminals.

Check for the following conditions:

^ Poor connections at the TCM or at the component. Inspect the harness connectors for any backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection. Refer to Overall Vehicle Information / Diagrams / Diagnostic Aids for Checking Terminal Contact procedure.

^ Damaged harness. Inspect the wiring harness for damage. If the harness appears to be OK, observe the scan tool while moving any related connectors and any wiring harnesses. A change in the display may help to locate the fault.

TEST DESCRIPTION

The number(s) below refer to the step number(s) on the Diagnostic Table.

3. In the previous step, the parameter did not change during the functional test. This step determines whether the circuit has failed high or failed low.