#
DTC P0108 [L3]

BME010200100W05

DTC P0108 | MAP sensor circuit high input
--- | ---
DETECTION CONDITION | • PCM monitors input voltage from MAP sensor when intake air temperature is above 10 °C {50 °F}. If input voltage at PCM terminal 1J is above 4.9 V, PCM determines that MAP sensor circuit has malfunction. Diagnostic support note • This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE CAUSE | • MAP sensor malfunction • Connector or terminal malfunction • Open circuit in wiring between MAP sensor terminal A and PCM terminal 2H • Open circuit in wiring between MAP sensor terminal D and PCM terminal 1J • MAP sensor signal circuit shorts to constant voltage supply circuit
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | PERFORM DTC CONFIRMATION PROCEDURE • Perform DTC CONFIRMATION PROCEDURE. (See DTC CONFIRMATION PROCEDURE [L3].) • Is same DTC present? | Yes | Go to next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L3].)
2 | INSPECT CONNECTION OF MAP SENSOR CONNECTOR • Turn ignition key to OFF. • Verify that the MAP sensor connector is connected securely. • Is connection okay? | Yes | Go to next step.
No | Reconnect the connector, then go to Step 8.
3 | INSPECT POOR CONNECTION OF MAP SENSOR CONNECTOR • Disconnect the MAP sensor connector. • Inspect for poor connection (damaged, pulled-out pins, corrosion, etc.). • Is there any malfunction? | Yes | Repair or replace suspected terminal, then go to Step 8.
No | Go to next step.
4 | VERIFY MAP SENSOR GROUND CIRCUIT FOR OPEN • Inspect continuity between MAP sensor terminal A (harness-side) and body ground. • Is there continuity? | Yes | Go to next step.
No | Inspect for open circuit between PCM terminal 2H (harness-side) and MAP sensor terminal A (harness-side). Repair or replace suspected harness, then go to Step 8.
5 | INSPECT PCM CONNECTOR • Disconnect PCM connector. • Inspect for poor connection at terminal 2H (damaged, pulled-out pins, corrosion, etc.). • Is there any malfunction? | Yes | Repair terminal, then go to Step 8.
No | Go to next step.
6 | VERIFY MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO CONSTANT VOLTAGE CIRCUIT • Inspect for continuity between MAP sensor terminal D and C (harness-side). • Is there continuity? | Yes | Repair or replace suspected harness, then go to Step 8.
No | Go to next step.
7 | VERIFY MAP SENSOR SIGNAL CIRCUIT FOR OPEN • Inspect continuity between MAP sensor terminal D (harness-side) and PCM terminal 1J (harness-side). • Is there continuity? | Yes | Go to next step.
No | Repair or replace suspected harness, then go to next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0108 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn ignition key to ON (Engine OFF). • Clear DTC from memory using WDS or equivalent. • Perform KOEO/KOER self-test.
(See KOEO/KOER SELF-TEST PROCEDURE [L3].)
• Is same DTC present?
Yes
Replace PCM, then go to next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | Go to next step.
9 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L3].) • Is there any DTC present? | Yes | Go to applicable DTC troubleshooting. (See DTC TABLE [L3].)
No | Troubleshooting completed.