Inspect Heater Control Subassembly

(a) Check the heater control resistance.

(1) Using an ohmmeter, measure the resistance and check the results in accordance with the values in the table below. Standard resistance

Switch Position

Tester Connection

Specified Condition

OFF

ALL - 5 (E)

10 kQ or higher

LO

9 (LO) - 5 (E)

Below 1 Q

LO - M1

9 (LO) - 5 (E) - 7 (M1)

Below 1 Q

M1

9 (LO) - 5 (E) - 7 (M1)

Below 1 Q

M1 - M2

9 (LO) - 5 (E) - 7 (M1) - 6 (M2)

Below 1 Q

M2

9 (LO) - 5 (E) - 6 (M2)

Below 1 Q

M2 - HI

9 (LO) - 5 (E) - 6 (M2) -10 (HI)

Below 1 Q

HI

9 (LO) - 5 (E) - 10 (HI)

Below 1 Q

If the result is not as specified, replace the heater control. (b) Check the illumination operation.

(1) Connect the positive (+) lead from the battery to terminal 2 (ILL+) and the negative (-) lead to terminal 1 (ILL-), then check that the bulb illuminates. Standard:

Bulb illuminates If the result is not as specified, replace the bulb.

MAX-HOT ILL- RrDEF
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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