13
INSPECTION PROCEDURE 3
Encrypted codes cannot be registered Probable cause
The cause may be a malfunction of the diagnosis con-
nector, ETACS-ECU or diagnosis output circuit.•
Malfunction of MUT-II
•
Malfunction of connector or wiring harness
•
Malfunction of ETACS-ECU
NGCheck the following connectors:
C-35, D-110
OK NG
Check trouble symptomsRepair
NG
Measure at diagnosis connector C-35 and ETACS-
ECU connector D-110.
•
Disconnect the connector, and measure at har
ness side.
•
Continuity between following terminals:
OK:
Continuity
28 - 9
side>Check the harness wire, and repair if necessary.
•
Between the ETACS-ECU and diagnosis connector
OK
Can the MUT-II communicate with other systems?
Yes No
NGCheck the following connectors:
A-56X, C-35, C-79, C-81
OK NG
Check trouble symptoms.Repair
Measure at the diagnosis
connector C-35
•
Voltage between 16
and body earth
OK:
System voltage
NG
OKCheck the harness wire, and repair if necessary.
•
Between fusible link No.5 and diagnosis connector
OK
Replace MUT-II.Measure at the diagnosis
connector C-35.
•
Continuity between 4
and body earth
•
Continuity between 5
and body earth
OK:
System voltage
NG
NG
RepairCheck the following
connectors:
C-35, C-86
OK
Check trouble symptoms.NG
Check the harness wire, and repair if necessary.
•
Between the diagnosis connector and earth
NG
Check the following connectors:
A-56X, C-81, C-82, C-88, C-91
OK NG
Check trouble symptomsRepair
NG
Measure at the ETACS-ECU connector C-91.
•
Disconnect the connector, and measure at the
harness side
•
Voltage between 1 and body earth
•
Voltage between 2 and body earth
•
Voltage between 3 and body earth
OK:
System voltage
OKCheck the harness wire, and repair if necessary.
•
Between dedicated fuse No.6 and ETACS-ECU
•
Between ignition switch (IG1) and ETACS-ECU
Check the following connectors:
C-86, C-91
OK NG
Check trouble symptoms.
Repair
Measure at the ETACS-ECU connectors C-91
•
Disconnect the connector, and measure at the
harness side.
•
Between 10 for connector C-91 and body earth
OK:
System voltage
NG
OK
Replace the ETACS-ECU.Check the harness wire, and repair if necessary.
•
Between the ETACS-ECU and earth
BODY – Keyless Entry System42-5
