Pinout Values and Diagnostic Parameters

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK HEATER CONTROL (BLOWER SWITCH)
(a) Disconnect the E58 blower switch connector.





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





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.
2. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
(a) Disconnect the 2F, 2G and 2Q instrument panel junction block connectors.





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





If the result is not as specified, there may be a malfunction in the wire harness.