RM38N0EC _56 Audio / Visual / Telematics _111824 TELEMATICS _0502894 TELEMATICS SYSTEM J

TELEMATICS  TELEMATICS SYSTEM  Emergency Call Switch Illumination Circuit  


WIRING DIAGRAM

E458951E25
2.469,2.292 2.823,2.469 0.354,0.177 10 false E12 2.469,2.479 4.01,2.719 1.542,0.24 10 false Telematics Transceiver 4.406,2.656 4.781,2.865 0.375,0.208 10 false Q9 4.406,2.833 5.781,3.063 1.375,0.229 10 false Map Light Assembly 4.208,0.896 4.469,1.115 0.26,0.219 10 false 20 4.198,1.698 4.51,1.938 0.313,0.24 10 false 40 4.458,0.906 4.844,1.083 0.385,0.177 10 false RRID 1.104,1.01 3.01,1.292 1.906,0.281 10 false from IGR NO. 2 Relay 4.458,1.719 4.927,1.896 0.469,0.177 10 false GND3 4.969,2.135 6.417,2.313 1.448,0.177 10 false Emergency Call Switch 2.823,1.198 3.938,1.396 1.115,0.198 10 false ECU-IGR NO. 2 3.292,1.823 3.76,2 0.469,0.177 10 false SIG- 3.708,1.708 4.021,1.948 0.313,0.24 10 false 3

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the telematics transceiver, refer to Service Bulletin.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY POWER SOURCE)
a.

Disconnect the E12 telematics transceiver connector.


b.

Disconnect the Q9 map light assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E12,Q9)Location & Routing

Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiver

Click Connector(Q9)Body>Roof Wire>Map Light Assembly

E12-3 (SIG-) - Q9-40 (GND3) Always Below 1 Ω
E12-3 (SIG-) or Q9-40 (GND3) - Body ground Always 10 kΩ or higher



d.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(Q9)Location & Routing

Click Connector(Q9)Body>Roof Wire>Map Light Assembly

Q9-20 (RRID) - Body Ground Ignition switch to ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

2.INSPECT MAP LIGHT ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.INSPECT MAP LIGHT ASSEMBLY

b.

Connect 4 1.5 V dry-cell batteries in series.


c.
E477832C05
0.385,1.677 0.49,1.25 false 2.823,1.646 2.719,1.24 false 0.073,0.094 0.354,0.333 0.281,0.24 10 false *a 0.219,1.719 0.74,1.938 0.521,0.219 10 false GND3 2.708,1.688 3.146,1.896 0.438,0.208 10 false RRID
*a Component without harness connected
(Map Light Assembly)


Connect a positive (+) lead from the batteries to terminal 20 (RRID), and a negative (-) lead to terminal 40 (GND3) of the map light assembly connector.


d.

Check if the emergency call switch illumination comes on.

OK:

The emergency call switch illumination comes on.



Result:
Proceed to
OK
NG



OK

NG