CHASSIS ELECTRICAL ± Combination Meters
54A-20
Inspection Procedure 2
Tachometer does not work.
Probable cause
The ignition signal may not be input from the engine, or there may be a malfunction
in the power supply or earth circuit.
D Malfunction of tachometer
D Malfunction of harness or connector
OK
OK
Measure at the combination meter connectors C-06 and C-07.
D Disconnect the connector, and measure at the harness side.
D Turn the ignition switch ON position.
(1) Voltage between the terminal No.45 and body earth
OK: 5 V
(2) Continuity between terminal No.52 and body earth
OK: Continuity
(3) Voltage between the terminal No.1 and body earth
OK: System voltage
(1) NG
Check the following connectors: C-07, C-18, C-28
NG
Repair
Check trouble symptom.
NG
Check the harness wire between the combination meter and en-
gine-ECU, and repair if necessary.
(3) NG
Repair
(2) NG
Check the following connector: C-07
NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between the ignition switch (IG1) and com-
bination meter, and repair if necessary.
OK
Check trouble symptom.
NG
Check the harness wire between the combination meter and body
earth, and repair if necessary.
Check the following connectors: C-06, C-02 <L.H. drive
vehicles>, C-76, C-74
MUT-II Self-Diag. Code
Is the diagnosis code No.44 for GDI system output?
YES
Check the ignition coil and power transistor unit system. (Refer
to GROUP 13A ± Troubleshooting, INSPECTION PROCEDURE
FOR DIAGNOSIS CODE 44.)
Replace the tachometer.
OK
NG
Inspection Procedure 3
Vehicle speed sensor circuit system inspection
Vehicle speed sensor inspection (Refer to P.54A-27.)
NG
Replace
OK
Measure at the vehicle speed sensor connector B-08.
D Disconnect the connector, and measure at the harness side.
D Turn the ignition switch to ON position.
(1) Voltage between the terminal No.3 and body earth
OK: 4.5 V or more
(2) Continuity between terminal No.2 and body earth
OK: Continuity
(3) Voltage between the terminal No.1 and body earth
OK: System voltage
(1) NG
Check the following connectors: B-08, D-02, C-38 <L.H. drive
vehicles>, C-41 <R.H. drive vehicles>, C-02, C-05
NG
Repair
NG
Check trouble symptom.
NG
Check the harness wire between the vehicle speed sensor and
combination meter, and repair if necessary.
(3) NG
NG
Repair
(2) NG
Check the following connector: B-08
NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between the vehicle speed sensor and
power supply, and repair if necessary.
OK
Check trouble symptom.
NG
Check the harness wire between the vehicle speed sensor and
body earth, and repair if necessary.
Check the following connectors: B-08, D-02, C-38 <L.H. drive
vehicles>, C-41 <R.H. drive vehicles>, C-02, C-76, C-74
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