[T] : Ground Points

Code	See	Ground Points Location
BL	◦ : PARTS LOCATION	Under the Left Center Pillar
BO	◦ : PARTS LOCATION	Back Panel Center

[O]  : Explains the system outline.

[P]  : Indicates the reference article showing the position on the vehicle of the parts in the system circuit.

Example : Part "L4" (Light Failure Sensor).

* The letter in the code is from the first letter of the part, and the number indicates its order in parts starting with that letter.

[Q]  : Indicates the reference article showing the position on the vehicle of Relay Block Connectors in the system circuit.

Example : Connector "1" is installed on the left side of the instrument panel.

[R]  : Indicates the reference article showing the position on the vehicle of J/B and Wire Harness in the system circuit.

Example : Connector "3C" connects the Instrument Panel Wire and J/B No. 3. It is installed on the instrument panel left side.

[S]  : Indicates the reference article describing the wiring harness and wiring harness connector (the female wiring harness is shown first, followed by the male wiring harness).

Example : Connector "IE1" connects the floor wire (female) and Instrument panel wire (male). It is installed on the left side kick panel.

[T]  : Indicates the reference article showing the position of the ground points on the vehicle.

Example : Ground point "BO" is installed on the back panel center.

The ground points circuit diagram shows the connections from all major parts to the respective ground points. When troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify the problem ground quickly. The relationship between ground points ( EA, IB and IC shown below) can also be checked this way.

* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the OEM SYSTEM CIRCUITS article.

The "Current Flow Chart" section, describes which parts each power source (fuses, fusible links, and circuit breakers) transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood.

* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the OEM SYSTEM CIRCUITS article.

1. Indicates connector to be connected to a part. (The numeral indicates the pin No.)
2. Junction Connector

   Indicates a connector which is connected to a short terminal.

   Fig 5: Identifying Short Terminals Of Junction Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Junction connector includes a short terminal which is connected to a number of wire harnesses. Always perform inspection with the short terminal installed. (When installing the wire harnesses, the harnesses can be connected to any position within the short terminal grouping. Accordingly, in other vehicles, the same position in the short terminal may be connected to a wire harness from a different part.)

   Wire harness sharing the same short terminal grouping have the same color.

3. Parts Code

   The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which start with the same letter.

4. Connector Color

   Connectors not indicated are milky white in color.

5. Indicates the connector shapes which are used to join wire harnesses.

   On Left : Female connector shapes

   On Right : Male connector shapes

   Numbers indicate pin numbers.

6. Indicates connector colors. (Connectors with not indicated colors are white)