Window Defogger System (for Automatic Air Conditioning System)

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM (for Automatic Air Conditioning System): TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY





(a) Disconnect the E30 air conditioning amplifier connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





- *1: TMC Made
- *2: NUMMI, TMMC Made
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





- *1: TMC Made
- *2: NUMMI, TMMC Made
If the result is not as specified, there may be a malfunction in the wire harness.
2. CHECK AIR CONDITIONING CONTROL ASSEMBLY
(a) Disconnect the E16 air conditioning control connector.





(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





- *1: TMC Made
- *2: NUMMI, TMMC Made
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





If the result is not as specified, there may be a malfunction in the wire harness.
3. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
(a) Disconnect the 2G, 2F and 2Q instrument panel junction block connector.





(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





- *1: TMC Made
- *2: NUMMI, TMMC Made
If the result is not as specified, there may be a malfunction in the wire harness.