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DTC Description
ECM controls fuel injection timing and fuel injection quantity when engine is started with the engine cold.
This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P05EC00COLD START CONTROL
(Cold Start Injection Timing Performance)
Diagnosis condition—
Signal (terminal)—
ThresholdECM does not control fuel injection timing properly when engine is started with the engine cold
Diagnosis delay time—
 
 
POSSIBLE CAUSE
ECM
 
 
FAIL-SAFE
Not applicable
 
 
DTC CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC P05EC or P2B95 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
Is applicable DTC detected?
Perform diagnosis of applicable. Refer to DTC Index.
.
 
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.
: .
 
3.PERFORM DTC CONFIRMATION PROCEDURE
With M.U.T.-III SE
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Select “DATA MONITOR” mode of “ENGINE” using M.U.T.-III SE.
  4. Check that “COOLANT TEMP/S”.
    • If it is between 5°C (41°F) and 40°C (104°F) go to the following steps.
    • If it is below 5°C (41°F) warm engine up to more than 5°C (41°F) and retry from step 1.
    • If it is above 40°C (104°F) cool engine down to less than 40°C (104°F) and retry from step 1.
  5. Start engine and let it idle for 5 minutes.
  6. Check 1st trip DTC.
 
With GST
Follow the procedure “With M.U.T.-III SE” above.
 
Is 1st trip DTC detected?
Proceed to DTC Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END