MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

(Continued)

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 4,768 / 6,619HTML edition
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Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.

Diagnostic Methods 2-29

On Board Diagnostic (OBD) Drive Cycle

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OBD Monitor Exercised

Drive Cycle Procedure

Purpose of Drive Cycle Procedure

greater than 75%, and FLI must be between 15 and 85%, and for fuel tanks over 25 gallons FLI must be between 30 and 85%.

Catalyst

7. Drive in stop and go traffic conditions. Include 5 different constant cruise speeds, ranging from 40 to 72 km/h (25 to 45 mph) over a 10 minute period.

Executes the catalyst monitor.

EGR

8. From a stop, idle for 30 seconds, accelerate to 72 km/h (45 mph) at 1/2 to 3/4 throttle, cruise at steady throttle for 1 minute. Repeat idle, acceleration and cruise 3 times.

Executes the exhaust gas recirculation (EGR) monitor.

CCM (Engine)

9. Bring the vehicle to a stop. Idle with the transmission in drive (neutral for M/T) for 2 minutes.

Executes the idle air control portion of the comprehensive component monitor (CCM).

CCM

(Transmission)

10. For M/T, accelerate from 0 to 80 km/h (0 to 50 mph), and continue to step 11. For A/T, from a stop and in overdrive, moderately accelerate to 80 km/h (50 mph) and cruise for greater than 15 seconds. Stop the vehicle and repeat without overdrive to 64 km/h (40 mph) cruising for greater than 30 seconds. While at 64 km/h (40 mph), activate the overdrive, accelerate to 80 km/h (50 mph) and cruise for greater than 15 seconds. Stop for at least 20 seconds and repeat step 10 five times.

Executes the transmission portion of the CCM.

Misfire, Fuel And Deceleration Fuel Shut Off Rear HO2S Monitors

11. From a stop, accelerate to 104 km/h (65 mph), hold steady throttle for 5 seconds, then decelerate at closed throttle to 64 km/h (40 mph) (no brakes), accelerate from 64 km/h (40 mph) to 104 km/h (65 mph), hold steady throttle for 5 seconds, repeat deceleration 5 times.

Allows learning for the misfire monitor, and completion of the deceleration fuel shut off rear HO2S monitor.

Readiness Check

12. Access the On Board System Readiness (OBD monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, go to step

13.

Determines if any monitor has not completed.

Pending Code Check And EVAP Monitor Bypass

Check

13. With the scan tool, check for pending codes. Conduct the normal repair procedures for any pending code concern. Otherwise, repeat any incomplete monitor. If the EVAP monitor is not complete and the intake air temperature was out of the 4.4 to 37.8°C (40 to 100°F) temperature range in step 4, or the altitude is over 2438 m (8000 ft.), the EVAP bypass procedure must be followed. Go to Step 14.

Determines if a pending code is preventing the completion of the OBD drive cycle.

EVAP Monitor

Bypass

14. Park the vehicle for a minimum of 8 hours. Repeat steps 2 through 11. Do not repeat step 1.

Allows the bypass counter to increment to 2.

2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015

Source reference 4768

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.