Check voltage between terminal WP of AC amplifier and body ground

Corolla E11 Amplifier

PREPARATION:

(a) Remove the center cluster module control with connectors still connected.

(b) Start the engine.

(c) Operate blower motor. CHECK:

Measure voltage between terminal WP of A/C amplifier and body ground in each condition as shown in the chart. OK:

condition

Voltage

Engine running

10 - 14 V

Engine stop

Below 1.0 V

Proceed to next circuit inspection shown on problem symptoms table (See page DI-886).

Water Pump Terminal

PREPARATION:

Remove the A/C water pump relay from engine room R/B NO. 3.

CHECK:

Check continuity between each pair of terminals of magnetic clutch relay.

Tester connection

Specified condition

1 - 2

62.5 - 90.9 a

3 - 5

No continuity

PREPARATION:

Apply battery positive (+) voltage between terminals 1 and 2. CHECK:

Check continuity between terminals 3 and 5. OK:

Continuity exists.

PREPARATION:

Remove the water pump (See page AC-55). CHECK:

Connect the positive (+) lead from the 6 dry cell batteries (7 -10.5 V) to terminal 1 and negative (-) lead to terminal 2, then check that the motor operation. NOTICE:

• Do not apply battery voltage.

• Operate without water within 10 sec. OK:

Motor operation smoothly.

Was this article helpful?

0 0
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment