Warm DRIVEABILITY Test 2 - Charge Temperature Switch Circuit Check

1. Disconnect both connectors from the computer. Connect an ohmmeter between 10-way connector cavity "9" and 12-way connector cavity "10". Ohmmeter reading should be 176-3900 ohms. If resistance is okay, proceed to WARM DRIVEABILITY TEST 3  . If resistance is not within specifications, disconnect charge temperature sensor connector.
   Fig 1: Computer 12-Way Connector and Computer 10-Way Connector

   
2. Connect an ohmmeter between charge temperature switch terminals. Ohmmeter reading should be 176-3900 ohms. If resistance is okay, repair wiring between computer and sensor for an open/short circuit. If resistance is not within specifications, replace charge temperature switch.

Fig 2: Charge Temperature Switch Terminals