Test Value and Test Limit
The following is the information specified in Service $06 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be displayed on the GST screen.
TEST VALUE AND TEST LIMIT
| Item | Self-diagnostic test item | DTC | Test value (GST display) | Test limit | Conversion | |
|---|---|---|---|---|---|---|
| TID | CID | |||||
| CATALYST | Three way catalyst function (Bank 1) | P0420 | 01H | 01H | Max. | 1/128 |
| P0420 | 02H | 81H | Min. | 1 | ||
| Three way catalyst function (Bank 2) | P0430 | 03H | 02H | Max. | 1/128 | |
| P0430 | 04H | 82H | Min. | 1 | ||
| EVAP SYSTEM | EVAP control system (Small leak) | P0442 | 05H | 03H | Max. | 1/128 mm2 |
| EVAP control system purge flow monitoring | P0441 | 06H | 83H | Min. | 20 mV | |
| EVAP control system (Very small leak) | P0456 | 07H | 03H | Max. | 1/128 mm2 | |
| HO2S | Air fuel ratio (A/F) sensor 1 (Bank 1) | P0131 | 41H | 8EH | Min. | 5mV |
| P0132 | 42H | 0EH | Max. | 5mV | ||
| P2A00 | 43H | 0EH | Max. | 0.002 | ||
| P2A00 | 44H | 8EH | Min. | 0.002 | ||
| P0133 | 45H | 8EH | Min. | 0.004 | ||
| P0130 | 46H | 0EH | Max. | 5mV | ||
| P0130 | 47H | 8EH | Min. | 5mV | ||
| P0133 | 48H | 8EH | Min. | 0.004 | ||
| Air fuel ratio (A/F) sensor 1 (Bank 2) | P0151 | 4CH | 8FH | Min. | 5mV | |
| P0152 | 4DH | 0FH | Max. | 5mV | ||
| P2A03 | 4EH | 0FH | Max. | 0.002 | ||
| P2A03 | 4FH | 8FH | Min. | 0.002 | ||
| P0153 | 50H | 8FH | Min. | 0.004 | ||
| P0150 | 51H | 0FH | Max. | 5mV | ||
| P0150 | 52H | 8FH | Min. | 5mV | ||
| P0153 | 53H | 8FH | Min. | 0.004 | ||
| Heated oxygen sensor 2 (Bank 1) | P0139 | 19H | 86H | Min. | 10mV/500 ms | |
| P0137 | 1AH | 86H | Min. | 10 mV | ||
| P0138 | 1BH | 06H | Max. | 10 mV | ||
| P0138 | 1CH | 06H | Max. | 10mV | ||
| Heated oxygen sensor 2 (Bank 2) | P0159 | 21H | 87H | Min. | 10mV/500 ms | |
| P0157 | 22H | 87H | Min. | 10 mV | ||
| P0158 | 23H | 07H | Max. | 10 mV | ||
| P0158 | 24H | 07H | Max. | 10mV | ||
| HO2S HEATER | A/F sensor 1 heater (Bank 1) | P0032 | 57H | 10H | Max. | 5 mV |
| P0031 | 58H | 90H | Min. | 5 mV | ||
| A/F sensor 1 heater (Bank 2) | P0052 | 59H | 11H | Max. | 5 mV | |
| P0051 | 5AH | 91H | Min. | 5 mV | ||
| Heated oxygen sensor 2 heater (Bank 1) | P0038 | 2DH | 0AH | Max. | 20 mV | |
| P0037 | 2EH | 8AH | Min. | 20 mV | ||
| Heated oxygen sensor 2 heater (Bank 2) | P0058 | 2FH | 0BH | Max. | 20 mV | |
| P0057 | 30H | 8BH | Min. | 20 mV | ||