Data Link Connector Inspection
WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- If Toyota hand-held tester or scan tool displays UNABLE TO CONNECT TO VEHICLE when hand-held tester or scan tool is connected to Data Link Connector No. 3 (DLC3), try hand-held tester or scan tool on another vehicle. If hand-held tester or scan tool operates on another vehicle, go to next step. If hand-held tester or scan tool does not operate on another vehicle, problem is probably with hand-held tester or scan tool.
- Check voltage and resistance between ground and specified terminal on DLC3. See DATA LINK CONNECTOR VOLTAGE & RESISTANCE SPECIFICATIONS table. See Fig 1. If voltage or resistance are not within specification, check wiring circuit. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. For full wiring diagram of DLC3, it may be necessary to see DATA LINK CONNECTORS article in ELECTRICAL.
DATA LINK CONNECTOR VOLTAGE & RESISTANCE SPECIFICATIONS
| Terminal No. (Circuit) | Specification | ||
|---|---|---|---|
| 4 (Chassis Ground) | 1 Ohm Or Less | ||
| 5 (Signal Ground) | 1 Ohm Or Less | ||
| 7 (BUS Communication) | (1) | ||
| 16 (Battery Voltage) | 9-14 Volts | ||
|
|||