Service manual

Troubleshooting
Diagnostic Procedure for Check Code
89
14
Is the Mg-SW contact faulty?
Are the resistance value
characteristics
of TD sensor normal?
Turn off the power supply,
and replace Mg-SW.
Sensor error
Sensor error
No
No
Yes
Yes
Are the output voltage
characteristics of Pd sensor/Ps
sensor normal?
No
Yes
Insufficient refrigerant, blockage
Check code Operation cause
1. Mg-SW contact deposit protective operation
[bd] 2. TD sensor error
Mg-SW protective operation 3. Pd sensor/Ps sensor error
4. Insufficient refrigerant, blockage in pipe