Climate Control System does not Operate on Driver Side

SEAT: CLIMATE CONTROL SEAT SYSTEM: Climate Control System does not Operate on Driver Side

Climate Control System does not Operate on Driver Side

DESCRIPTION

When the climate control seat switch is operated, the seat climate control ECU receives the signal and operates the climate control system.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FUSE (SEAT-A/C FAN, SEAT-A/C LH, LH-IG)
(a) Remove the SEAT-A/C FAN fuse from the cowl side junction block RH.
(b) Remove the SEAT-A/C LH fuse from the engine room relay block.
(c) Remove the LH-IG fuse from the main body ECU.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - BATTERY AND BODY GROUND)

(a) Disconnect the c38 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (CLIMATE CONTROL SEAT SWITCH LH - BATTERY AND BODY GROUND)

(a) Disconnect the E93 switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. INSPECT CLIMATE CONTROL SEAT SWITCH LH

(a) Disconnect the E93 switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPLACE CLIMATE CONTROL SEAT SWITCH LH
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - CLIMATE CONTROL SEAT SWITCH LH)

(a) Disconnect the c38 ECU connector.
(b) Disconnect the E93 switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SEAT CLIMATE CONTROL ECU