Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS article.
- If MAP sensor is not already disconnected, disconnect it. Using a DVOM, check voltage of 5-volt supply circuit at MAP sensor connector. See «MAP SENSOR CONNECTOR WIRE IDENTIFICATION»(ref-576-S28814789552000030800000) table. Observe voltage while wiggling wiring harness for MAP sensor, EGR solenoid, A/C pressure sensor and TP sensor. If voltage did not change, go to next step. If voltage changed, repair wiring harness as necessary where wiggling caused problem to appear. Perform «TEST VER-2A: ROAD TEST VERIFICATION»(ref-576-S22124556262000030800000) .
- Condition to set trouble code is not present at this time. 5 VOLT SUPPLY OUTPUT TOO LOW DTC sets if 5-volt supply to engine sensors is less than 3.5 volts for 4 seconds. Possible causes are: shorted 5-volt supply circuit, shorted sensor or PCM failure. See «INACTIVE TROUBLE CODE CONDITION»(ref-576-S27765318282000030800000) under SELF-DIAGNOSTICS.
- Using scan tool, read FREEZE FRAME data. Ensure hex code matches DTC on scan tool. Hex code should be 92. Utilize FREEZE FRAME data to help in diagnostics. Repair as necessary. Test is complete. Perform «TEST VER-2A: ROAD TEST VERIFICATION»(ref-576-S22124556262000030800000) .
| Application | Wire Color |
|---|---|
| MAP Sensor Signal Circuit | Dark Green/Red |
| MAP Sensor 5-Volt Supply Circuit | Violet/White |
| MAP Sensor Ground Circuit | Black/Light Blue |
| IAT Sensor Signal Circuit (1) | Black/Red |
| (1) 3.2L and 3.5L only. | |
| (1) | 3.2L and 3.5L only. |
MAP SENSOR CONNECTOR WIRE IDENTIFICATION