P0706

Circuit Description
The transaxle on this vehicle has a Park Neutral Position (PNP) and Back-up switch. This switch incorporates a transaxle range selector switch. There are 4 inputs (PRND A, B, C, P) which can be switched to ground by the PNP switches. The tour switches have an unique switch pattern. The PCM uses the combination of the switch patterns in order to determine the gear selected by the driver. The PCM monitors the transaxle range selector switch when the engine starts. If the PCM detects that the transaxle is not in Park or Neutral when the engine is started, this DTC sets.

Conditions for Running the DTC
Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC
^ The PCM detects that transaxle range selector switch indicates a range other than Park or Neutral when the vehicle starts.
^ The PCM will test for this condition once an ignition cycle.
^ The diagnostic fails two out of four tests.

Action Taken When the DTC Sets
^ The PCM stores the DTC information into memory when the diagnostic runs and fails.
^ The Malfunction Indicator Lamp (MIL) will not illuminate.
^ The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records.

Conditions for Clearing the MIL/DTC
^ A History DTC will clear after forty consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
^ A last test failed (Current DTC) will clear when the diagnostic runs and does not fail.
^ Use a scan tool in order to clear the MIL/DTC.

Diagnostic Aids

Important:
^ Remove any debris from the PCM/TAC module connector surfaces before servicing the PCM/TAC module. Inspect the PCM/TAC module connector gaskets when diagnosing/replacing the modules. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion into the PCM/TAC modules.
^ For any test that requires probing the PCM or a component harness connector, use the Connector Test Adapter kit J 35616-A. Using this kit prevents damage to the harness/component terminals.
^ The following may cause an intermittent:
- Poor connections
- Corrosion
- Mis-routed harness
- Rubbed through wire insulation
- Broken wire inside the insulation
^ Manipulate related wiring and connectors while observing the PRND Range parameters (PRND A, B, C, P) on the scan tool. If the manipulation causes an intermittent, the corresponding parameter changes on the scan tool.
^ Using Freeze Frame and/or Failure Records data may aid in locating an intermittent condition. If you cannot duplicate the DTC, the information included in the Freeze Frame and/or Failure Records data can aid in determining how many miles since the DTC set. The Fail Counter and Pass Counter can also aid determining how many ignition cycles the diagnostic reported a pass and/or a fail. Operate the vehicle within the same freeze frame conditions (RPM, load, vehicle speed, temperature etc.) that you observed. This will isolate when the DTC failed.
^ For an intermittent, refer to Symptoms. Symptom Related Diagnostic Procedures
^ The table below is the normal state that each gear range should indicate. ON indicates the circuit is low (switched/shorted to a ground). OFF indicates the circuit is high (open) switch. Another parameter to display is PRND Range. This parameter displays the current gear range the transaxle is in. When there is an invalid gear range, the parameter indicates Invalid.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. This verifies whether a malfunction is present. If the PCM does not detect any invalid ranges, this indicates the fault is not present. You may have repaired the fault when the switch was adjusted.
4. Any circuit that you suspect is causing an intermittent condition, thoroughly inspect for the following:
^ Backed out terminals
^ Improper mating
^ Broken locks
^ Improperly formed or damaged terminals
^ Poor terminal to wiring connections
^ Physical damage to the wiring harness
5. A circuit malfunction causes the Trans Range to display an invalid range on the scan tool. Jumping each circuit to ground simulates the trans range switch operation and verifies the circuity and PCM. While the transaxle range switch is disconnected and the circuits are not grounded, the scan tool should indicate OFF. A value that indicates ON with no jumper to ground indicates a grounded circuit or malfunctioning PCM.
11. If you have not found any malfunctions at this point and no additional DTCs were set, refer to Diagnostic Aids for additional information.