Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2023GRAND CHEROKEE TRAILHAWK 4XEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 29 (3.6L - DTCS P0159 TO P0206)
2023 Jeep Grand Cherokee Trailhawk 4xe
Section 29 (3.6L - DTCS P0159 To P0206)
2023 Jeep Grand Cherokee Trailhawk 4xeSECTION Section 29 (3.6L - DTCS P0159 To P0206)
WARNING: This page is about a different variant/trim than selected.
- DTC Troubleshooting
- P0159 O2 Sensor 2/2 Slow Response
- P0160 O2 Sensor 2/2 No Activity Detected
- P0161 O2 Sensor 2/2 Heater Performance
- P0171 Fuel System 1/1 Lean
- P0172 Fuel System 1/1 Rich
- P0174 Fuel System 2/1 Lean
- P0175 Fuel System 2/1 Rich
- P018B Fuel Pressure Sensor Circuit Performance
- P018C Fuel Pressure Sensor Circuit Low
- P018D Fuel Pressure Sensor Circuit High
- P0196 Engine Oil Temperature Sensor Performance
- P0197 Engine Oil Temperature Sensor Circuit Low
- P0198 Engine Oil Temperature Sensor Circuit High
- P0201-00 Fuel Injector 1 Circuit Open
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
- P0202-00 Fuel Injector 2 Circuit Open
- Notes
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
- P0203-00 Fuel Injector 3 Circuit Open
- Notes
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
- P0204-00 Fuel Injector 4 Circuit Open
- Notes
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
- P0205-00 Fuel Injector 5 Circuit Open
- Notes
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
- P0206-00 Fuel Injector 6 Circuit Open
- Notes
- Functional Description - Fuel Injectors
- Technical Data - Fuel Injectors
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview - Fuel Injector
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Testing The Entire Fuel Injector Circuitry Using A Lab Scope (Preferred Method):
- Diagnostic Test - Testing A Fuel Injector Using A DVOM
- Powertrain Verification Test
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.