Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- A current DTC Last Test Failed clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
- Clear the DTC with a scan tool.
DTC P1115
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Connector End Views or Powertrain Control Module Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Observe the engine coolant temperature (ECT) sensor parameter with a scan tool. Is the ECT sensor parameter less than the specified value? |
-39°C (-38°F) | Go to Step 4 | Go to Step 3 |
| 3 |
|
- | Go to Step 4 | Go to Testing for Intermittent Conditions and Poor Connections |
| 4 |
|
5.2 V | Go to Step 5 | Go to Step 6 |
| 5 |
IMPORTANT:
If a short to voltage occurs, the ECT sensor may be damaged. Test the ECT signal circuit for an intermittent short to voltage. Refer to Circuit Testing
and Wiring Repairs
.Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 12 |
| 6 |
|
149°C (300°F) | Go to Step 10 | Go to Step 7 |
| 7 |
|
149°C (300°F) | Go to Step 9 | Go to Step 8 |
| 8 | Test the signal circuit of the ECT sensor for an intermittent high resistance or an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 12 |
| 9 | Test the ECT sensor low reference circuit for an intermittent high resistance or an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 12 |
| 10 | Test the ECT signal circuit for an intermittent short to any 5-volt reference circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 11 |
| 11 | Test for an intermittent and for a poor connection at the ECT sensor. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 13 |
| 12 | Test for an intermittent and for a poor connection at the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 15 | Go to Step 14 |
| 13 | Replace the ECT sensor. Refer to Engine Coolant Temperature Sensor Replacement
. Did you complete the replacement? |
- | Go to Step 15 | - |
| 14 | Replace the PCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 15 | - |
| 15 |
|
- | Go to Step 2 | Go to Step 16 |
| 16 | Observe the Capture Info with a scan tool. Have any other DTCs not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List - Vehicle | System OK |