Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
DM: Manifold Pressure Sensors
DM: Introduction
DM1 CHECK FOR DTCS
Note: This pinpoint test is designed to diagnose multiple components in the same test steps, only measure the circuits that apply to the vehicle and the component being diagnosed.
Note: Diagnose circuit concerns before range or performance concerns.
Are DTCs P0106, P0107, P0108, P0109, P0236, P0237, P0238, or P025E present?
Yes | No |
|---|---|
GO to DM2 . | For symptoms without DTCs, GO to DM2 . For all others, RETURN to Section 3 , Symptom Charts for further direction. |
DM2 MONITOR THE MAP PID
• Ignition ON, engine OFF.
• For the TCBP or TCBP/CACT sensor,
• Access the PCM and monitor the TCBP_V (VOLT) PID.
• For all others,
• Access the PCM and monitor the MAP_V (VOLT) PID.
Is the voltage between 0.05 - 4.95 V?
Yes | No |
|---|---|
For DTCs P0106 or P0236, GO to DM9 . For all others, GO to DM8 . | GO to DM3 . |
DM3 CHECK THE VOLTAGE BETWEEN THE VREF AND SIGRTN CIRCUITS
• Ignition OFF.
• For the MAP sensor,
• MAP Sensor connector disconnected.
• Measure the voltage between:
( + ) MAP Sensor Connector, Harness Side | ( - ) MAP Sensor Connector, Harness Side |
|---|---|
VREF | SIGRTN |
• For the MAP/CACT sensor,
• MAP/CACT Sensor connector disconnected.
• Measure the voltage between:
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.