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TEST 22A
REPAIRING LEFT SEAT HEAT OUTPUT SHORTED TO GROUND TROUBLE CODE
Perform TEST 1A Before Proceeding
START TEST 22A.
DISCONNECT THE LEFT
SEAT CUSHION HEATER
4-WAY HARNESS
CONNECTOR.**
FIG. 1
TURN IGNITION ON
(ENGINE OFF).
USING THE DRB
SELECT "READ
DTC's".
DISCONNECT THE SEAT
BACK HEATER 2-WAY
HARNESS CONNECTOR.**
FIG. 2
USING AN OHMMETER,
MEASURE THE HEATED
SEAT DRIVER CKT
(CAV A) TO GROUND.
FIG. 2
*Perform Verification TEST VER-4A.
NOTE: FOR LOCATION
OF ALL COMPONENTS
SEE GENERAL INFO 4.0
USING THE DRB
ERASE THE TROUBLE
CODE.
TURN IGNITION OFF.
USING AN OHMMETER,
MEASURE LEFT SEAT
HEATER B(+) DRIVER
(CAV A) TO GROUND.
FIG. 3
**Check connectors - Clean / repair as necessary.
481
DOES THE "LEFT
SEAT HEAT OUTPUT
NO
OPEN" TROUBLE CODE
APPEAR?
YES
IS THE RESISTANCE
YES
BELOW 1000.0 (1K)
OHMS?
NO
IS THE RESISTANCE
YES
BELOW 1000.0 (1K)
OHMS?
NO
CONTINUE TEST
22A ON THE NEXT
PAGE.
REPLACE THE SEAT
CUSHION.*
REPAIR THE HEATED
SEAT DRIVER CKT
FOR A SHORT TO
GROUND.*
REPLACE THE HEATED
SEAT BACK.*
M
E
M
O
R
Y
S
Y
S
T
E
M
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