Generating Readiness Code
NOTE:
Before generating readiness code, perform a long road test. Coolant temperature needs to be greater than 176° F (80° C). Idle, partial throttle, full throttle and overdrive, all must be attained several times. During test drive, apply full throttle until engine speed exceeds 3500 RPM. Read readiness code. OBD system checks components and generates Readiness Code at regular intervals during normal driving.
NOTE:
During readiness code generating procedure, if test result is indicated as OK after selecting a display group, testing has already been carried out and it is okay to proceed to next work step.
- To generate readiness code, vehicle must be stationary, transmission in Park or Neutral, all electrical consumers off, A/C switched off and coolant temperature at least 176°F (80°C). If possible it is best to warm-up vehicle by test driving. Connect scan tool to DLC. DLC is located at left side of steering column.
- Using scan tool, retrieve DTCs. See RETRIEVING CODES in appropriate SELF-DIAGNOSTICS article. If DTCs are stored. Perform appropriate test and repair as necessary. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION in appropriate SELF-DIAGNOSTICS article. Using scan tool, clear DTC memory. See CLEARING CODES in appropriate SELF-DIAGNOSTICS article.
- After clearing DTC memory. Follow scan tool instructions to complete generating readiness code. During test sequence if test is successful scan tool changes display digits from 1 to 0. See Fig 1. Readiness code should display 0 0 0 0 0 0 0 0. If readiness code displays as specified, testing is complete.