Monitor Description
OUTLINE OF DIAGNOSIS
- When cold, the abnormality in the control of target engine speed increase is detected. (DTC P050A)
Judge as NG if the idle speed diagnosis is NG.
<Idle speed diagnosis>
Judge as NG when actual engine speed is not close to target engine speed at cold start.
- Detect malfunctions of the catalyst advanced idling retard angle control. (DTC P050B)
Judge as NG when ECM is not controlling the angle properly during catalyst advanced idling retard angle control.
<Final ignition timing diagnosis>
Judge as NG when actual retard amount is under the specified value at cold start.
EXECUTION CONDITION
| Secondary parameters | Execution condition | DTC |
|---|---|---|
| Battery voltage | 10.9 V or higher | P050A |
| Barometric pressure | 75.1 kPa (563 mmHg, 22.2 inHg) or more | |
| Vehicle speed | 2 km/h (1.2 MPH) or less | |
| Throttle position | Less than 0.25° | |
| Integrated value of intake air amount | Less than value of Map1 | |
| Elapsed time after gear position change (P ←→ D or N ←→ D) | 2000 ms or more | |
| Elapsed time after starting the engine | 2000 ms or more |
| Secondary parameters | Execution condition | DTC |
|---|---|---|
| Battery voltage | 10.9 V or higher | P050B |
| Barometric pressure | 75.1 kPa (563 mmHg, 22.2 inHg) or more | |
| Throttle position | Less than 0.25° | |
| Integrated value of intake air amount | Less than value of Map2 | |
| Elapsed time after gear position change (P ←→ D or N ←→ D) | 2000 ms or more | |
| Target retard amount (N range) | Value of Map3 or less | |
| Elapsed time after starting the engine | Value of Map4 or less |
Map1
| Coolant temperature at first engine start (°C (°F)) |
-40 (-40) |
-30 (-22) |
-20 (-4) |
-10 (14) |
0 (32) |
10 (50) |
20 (68) |
30 (86) |
|---|---|---|---|---|---|---|---|---|
| Integrated value of intake air amount (g (oz)) |
850 (29.98) |
850 (29.98) |
800 (28.22) |
750 (26.45) |
700 (24.69) |
650 (22.93) |
600 (21.16) |
550 (19.4) |
| Coolant temperature at first engine start (°C (°F)) |
40 (104) |
50 (122) |
60 (140) |
70 (158) |
80 (176) |
90 (194) |
100 (212) |
110 (230) |
|---|---|---|---|---|---|---|---|---|
| Integrated value of intake air amount (g (oz)) |
500 (17.64) |
573 (20.21) |
645 (22.75) |
654 (23.07) |
663 (23.38) |
0 (0) |
0 (0) |
0 (0) |
Map2
| Coolant temperature at first engine start (°C (°F)) |
-40 (-40) |
-30 (-22) |
-20 (-4) |
-10 (14) |
0 (32) |
10 (50) |
20 (68) |
30 (86) |
|---|---|---|---|---|---|---|---|---|
| Integrated value of intake air amount (g (oz)) |
850 (29.98) |
850 (29.98) |
800 (28.22) |
750 (26.45) |
700 (24.69) |
650 (22.93) |
600 (21.16) |
550 (19.4) |
| Coolant temperature at first engine start (°C (°F)) |
40 (104) |
50 (122) |
60 (140) |
70 (158) |
80 (176) |
90 (194) |
100 (212) |
110 (230) |
|---|---|---|---|---|---|---|---|---|
| Integrated value of intake air amount (g (oz)) |
500 (17.64) |
573 (20.21) |
645 (22.75) |
654 (23.07) |
663 (23.38) |
0 (0) |
0 (0) |
0 (0) |
Map3
| Engine coolant temperature (°C (°F)) |
-40 (-40) |
-30 (-22) |
-20 (-4) |
-10 (14) |
0 (32) |
10 (50) |
20 (68) |
30 (86) |
|---|---|---|---|---|---|---|---|---|
| Target retard amount (°CA) |
15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 |
| Engine coolant temperature (°C (°F)) |
40 (104) |
50 (122) |
60 (140) |
70 (158) |
80 (176) |
90 (194) |
100 (212) |
110 (230) |
|---|---|---|---|---|---|---|---|---|
| Target retard amount (°CA) |
15.5 | 15.5 | 15.5 | 14.5 | 13.5 | 13.5 | 13.5 | 13.5 |
Map4
| Engine coolant temperature (°C (°F)) |
-40 (-40) |
-30 (-22) |
-20 (-4) |
-10 (14) |
0 (32) |
10 (50) |
20 (68) |
30 (86) |
|---|---|---|---|---|---|---|---|---|
| Target retard amount (°CA) |
8.5 | 8.5 | 8 | 7 | 7 | 7 | 7 | 7 |
| Engine coolant temperature (°C (°F)) |
40 (104) |
50 (122) |
60 (140) |
70 (158) |
80 (176) |
90 (194) |
100 (212) |
110 (230) |
|---|---|---|---|---|---|---|---|---|
| Target retard amount (°CA) |
7 | 5 | 4 | 4 | 4 | 4 | 4 | 4 |
GENERAL DRIVING CYCLE
Perform the diagnosis at cold start.
DIAGNOSTIC METHOD (Idle speed diagnosis)
Judge as NG when the following conditions are established.
Judgment value
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Actual engine speed - Target engine speed | Less than -300RPM | P050A |
Time needed for diagnosis
7000 ms
Malfunction indicator light illumination
Illuminates when malfunction occurs in 2 continuous driving cycles.
DIAGNOSTIC METHOD (Final ignition timing diagnosis)
Judge as NG when the following conditions are established.
Judgment value
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
Final ignition timing - Ignition timing during CSERS**:
|
More than 5.5°CA | P050B |
Time needed for diagnosis
7000 ms
Malfunction indicator light illumination
Illuminates when malfunction occurs in 2 continuous driving cycles.