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Home >> Nissan-Datsun >> 2000 >> Altima GLE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0510: Closed Throttle Position (TP) Switch >> DTC Confirmation Test (Overall Function Check)

DTC Confirmation Test (Overall Function Check)

NOTE: Use the following test to check overall function of closed TP switch circuit. During this test, DTC may not be confirmed.

Malfunction is detected when battery voltage is sent to ECM from closed TP switch when throttle valve is opened. Possible causes are:

To check overall function of closed TP switch circuit, start engine and warm to normal operating temperature. Measure voltage between ground and ECM terminal No. 27 by backprobing. See Figure. Battery voltage should exist at idle. At 2000 RPM, about zero volts should exist.

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