Flag 76

Circuit Schematic:

TP SENSOR VOLTAGE VS MAP VOLTAGE - OUT OF RANGE
The PCM has an internal table that looks at MAP sensor values with respect to TP sensor values. When their relationship to each other falls outside normal operating ranges (example: high vacuum during wide open throttle) Information flag 76 will be set.

INFORMATION FLAG PARAMETERS

Information flag 76 will set if:
^ The TP sensor vs MAP sensor relationship is not consistent with normal engine operation.

DIAGNOSTIC AIDS
Information Flag 76 indicates that either the TP sensor or MAP sensor is skewed outside its normal operating range.

Check TP sensor and MAP sensor connectors for corrosion.

Check PCM connector for corrosion.

Move throttle and check TP sensor voltage readings on Scan tool.

At a closed throttle position, the output of the TP sensor is low (approximately 0.4 volts). As the throttle plate opens, the output increases so that, at wide-open throttle, the output voltage should be approximately 4.9 volts.

When attempting to diagnose an intermittent problem, use the Scan tool[1] to review supplemental diagnostic information. The supplemental data can be used to duplicate a problem.

Check the tightness of the female terminal grip with a spare male terminal.

NOTE: Information flags should be used for diagnostic purposes only. They do not necessarily indicate component malfunction/failure.


[1] Select Malfunction History from Scan tool Engine Control (EC) menu.