Chrysler & Dodge: Drive Cycle Procedures to complete OBD Readiness Monitors

Chrysler Drive Cycle Information

All Monitor Drive Trace
Pre-Conditioning Requirements:
– MIL must be off
– Cold start (Note: cold start temperature is undefined)
Driving Procedure
1) Warm engine up for five minutes (must reach closed loop)
2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes.
3) Stop and idle for 3 minutes.
4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes.
5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor).
Note: Due to the limited preconditions provided with this drive trace, NCVECS recommends using the monitor
specific drive traces for Chrysler vehicles.

Catalyst Monitor Drive Trace
Pre-Conditioning Requirements:
– MIL must be off.
– No DTCs present.
– Fuel level is between 15% and 85% full.
– ECT above 70º F.
– Engine must have run at least 90 seconds
– Engine between 1,350 & 1,900 rpm.
Driving Procedure
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 30 and 45 mph for 2 minutes.

EGR System Monitor Drive Trace – Vacuum controlled
Pre-Conditioning Requirements:
– MIL must be off.
Driving Procedure
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 40 & 60 mph for 8 minutes.

EGR System Monitor Drive Trace – Electronic
Pre-Conditioning Requirements:
– MIL must be off.
– MAP must be between 0-60 KPa.
– Engine speed between 500-850 rpm.
– ECT is above 180º F (90º C).
– No misfire temporary (pending) or matured fault present.
– A/C clutch, PS Switch and Cooling fans do not change state (turn off).
Driving Procedure
1) Idle vehicle for five (5) minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 40 & 60 mph for 2 minutes.
3) Idle vehicle for three (3) minutes.
Note: This monitor evaluates EGR flow based on a change of engine roughness (idle stability).
Conditions causing un-stable idle will prevent this monitor from running.

Evaporative System Monitor Drive Trace
Trace 1: Standard Type
Pre-Conditioning Requirements:
– MIL must be off.
– No Evaporative DTCs present.
– Fuel level is between ½ and full.
(Note: monitor may still run with tank fill between 15% and 85%).
Driving Procedure
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 30 and 45 mph for 2 minutes.
Trace 2: Leak Detection Pump
Pre-Conditioning Requirements:
– MIL must be off.
– No Evaporative DTCs present.
– Fuel level is between 30 & 85 % full.
Driving Procedure
1) Cold soak vehicle, start and idle vehicle for 4 minutes.
2) Drive in-town (stop and go) for 5 minutes, using smooth accelerations and decelerations.
3) Stop and idle vehicle for 4 minutes.

O2 Sensor Monitor Drive Trace
Pre-Conditioning Requirements:
– MIL must be off.
Driving Procedure
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed above 25 mph for 2 minutes.
3) Stop and idle for 30 seconds.
4) Smoothly accelerate to a speed between 30 and 40 mph.
5) Repeat steps 3 & 4 five (5) times.

O2 Sensor Heater Monitor Drive Trace
Pre-Conditioning Requirements:
– MIL must be off.
Driving Procedure
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Shut engine off and leave vehicle off for ten minutes.

One Reply to “Chrysler & Dodge: Drive Cycle Procedures to complete OBD Readiness Monitors”

  1. Pingback: Autozone cleared my codes and now I cannot pass emissions test - Chrysler 300C Forum: 300C & SRT8 Forums

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