Subaru BRZ Electrical Manual — part 4

To Ignition SW
IG Terminal

Test Light

Relay

Light

SW 2

Solenoid

Disconnect

Short [A]

Disconnect

Disconnect

SW 1

Fuse Case

Short [B]

Short [C]

Pull Up

Press Down

Press Down

Pull Up

C

FINDING A SHORT CIRCUIT

(a) Remove the blown fuse and disconnect all loads of the fuse.

(b) Connect a test light in place of the fuse.

(c) Establish conditions in which the test light comes on.

Example:

[A] – Ignition SW on
[B] – Ignition SW and SW 1 on
[C] – Ignition SW, SW 1 and Relay on (Connect the

Relay) and SW 2 off (or Disconnect SW 2)

(d) Disconnect and reconnect the connectors while watching the

test light.
The short lies between the connector where the test light
stays lit and the connector where the light goes out.

(e) Find the exact location of the short by lightly shaking the

problem wire along the body.

CAUTION:

(a) Do not open the cover or the case of the ECU unless

absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)

(b) When replacing the internal mechanism (ECU part) of

the digital meter, be careful that no part of your body or
clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).

DISCONNECTION OF MALE AND FEMALE
CONNECTORS

To pull apart the connectors, pull on the connector itself, not
the wire harness.

HINT:Check to see what kind of connector you are

disconnecting before pulling apart.

BRZ (G4400GE)

13

Memo

BRZ (G4400GE)

14

Memo

BRZ (G4400GE)

15

Memo

BRZ (G4400GE)

16