Component Check
-- Using a Multimeter, check the Charge Air Pressure Sensor / Intake Manifold Temperature Sensor - G31 / G72 - terminals 3 to 4 for resistance.
Use the chart below for the specified values:
Specified values:
| IAT Temperature vs Resistance | ||
| Temp (C) | min. value ohms | max. value ohms |
| - 40 | 40730 | 50314 |
| - 35 | 30908 | 37953 |
| - 25 | 18142 | 22023 |
| - 15 | 10945 | 13144 |
| - 5 | 6801 | 8074 |
| 0 | 5420 | 6403 |
| 5 | 4443 | 4970 |
| 15 | 4343 | 5106 |
| 25 | 1916 | 2207 |
| 35 | 1318 | 1510 |
| 45 | 927 | 1051 |
| 55 | 661.2 | 746.6 |
| 65 | 480.2 | 537.8 |
| 75 | 354.4 | 394.9 |
| 85 | 265.7 | 294.0 |
If any of the specified value's were Not obtained:
-- Replace the Charge Air Pressure Sensor / Intake Manifold Temperature Sensor - G31 / G72 -. Refer to appropriate Service Information.
-- Go to Final procedures.
If the specified values were obtained:
-- Replace the Engine Control Module -J623 -. Refer to appropriate Service Information.
Final procedures
-- Reinstall the engine cover with air filter, if necessary. Refer to the appropriate Service Information.
-- After the repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .