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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (3.0L Diesel - DTCS P01CD-00 To P0402-00) >> DTC Troubleshooting >> P0299-00-Turbocharger UNDERBOOST Condition >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
RESTRICTED AIR FILTER
AIR CLEANER BOX DAMAGED, OUT-OF-POSITION, AND/OR NOT SEALED PROPERLY
INTAKE AIR SYSTEM LEAKS OR RESTRICTIONS PRESENT SUCH AS ICE OR WATER
FUSED ASD RELAY OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
TURBO ACTUATOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
TURBO ACTUATOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
BOOST PRESSURE SENSOR
TURBOCHARGER

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .