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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (5.7L - DTCS P025B To P0455) >> DTC Troubleshooting >> P0340-Camshaft Position Sensor Circuit - Bank 1 Sensor 1 >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
LOW ENGINE OIL LEVEL
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
5-VOLT SUPPLY CIRCUIT OPEN
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
5-VOLT SUPPLY CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
CMP 1/1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
CMP 1/1 SIGNAL CIRCUIT SHORTED TO GROUND
CMP 1/1 SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
CMP 1/1 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
CAMSHAFT POSITION SENSOR 1
TONE WHEEL LOOSE OR DAMAGED
POWERTRAIN CONTROL MODULE (PCM)

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