Toyota Tundra (2015 year). Manual — part 2284

A

A

TESTER DISPLAY

TEST PART

CONTROL

RANGE

DIAGNOSTIC

NOTE

Pulse (D)

motor) pulse

104

Air Outlet Servo Pulse

(D)

No. 1 damper servo sub-assembly (air outlet servo

motor) pulse

Min.: 9, Max.:

97

-

Air Inlet Damper Targ

Pulse

Air inlet damper target pulse

Min.: 7, Max.:

28

-

OK:

RESULT

PROCEED TO

B

GO TO STEP 6

2.

SYSTEM CHECK

(a) According to the test, proceed to the next step.

Result

RESULT

PROCEED TO

Only the No. 1 damper servo sub-assembly (air mix servo motor) is malfunctioning

A

Only the No. 1 damper servo sub-assembly (air outlet servo motor) is malfunctioning

B

Only the air inlet control servo motor is malfunctioning

C

B

GO TO STEP 4

C

GO TO STEP 5

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

3.

CHECK NO. 1 DAMPER SERVO SUB-ASSEMBLY (AIR MIX SERVO MOTOR)

(a) Replace the No. 1 damper servo sub-assembly (air mix servo motor)

.

HINT:

Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor

with a new or a known good one and check that the condition returns to normal.

(b) Check for DTC

.

Result

RESULT

PROCEED TO

DTC B1497/97 is not output

A

DTC B1497/97 is output

B

B

GO TO STEP 6

A

END (NO. 1 DAMPER SERVO SUB-ASSEMBLY [AIR

MIX SERVO MOTOR] IS DEFECTIVE)

4.

CHECK NO. 1 DAMPER SERVO SUB-ASSEMBLY (AIR OUTLET SERVO MOTOR)

(a) Replace the No. 1 damper servo sub-assembly (air outlet servo motor)

.

HINT:

Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor

with a new or a known good one and check that the condition returns to normal.

(b) Check for DTC

.

Result

RESULT

PROCEED TO

DTC B1497/97 is not output

A

DTC B1497/97 is output

B

B

GO TO STEP 6

A

END (NO. 1 DAMPER SERVO SUB-ASSEMBLY [AIR

OUTLET SERVO MOTOR] IS DEFECTIVE)

5.

CHECK AIR INLET SERVO MOTOR

(a) Replace the air inlet servo motor

.

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

HINT:

Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor

with a new or a known good one and check that the condition returns to normal.

(b) Check for DTC

.

Result

RESULT

PROCEED TO

DTC B1497/97 is not output

A

DTC B1497/97 is output

B

B

GO TO STEP 6

A

END (AIR INLET SERVO MOTOR IS DEFECTIVE)

6.

CHECK AIR CONDITIONING HARNESS

(a) Replace the air conditioning harness.

HINT:

Since the air conditioning harness cannot be inspected while it is removed from the vehicle, replace the air

conditioning harness with a new or a known good one and check that the condition returns to normal.

(b) Check for DTC

.

Result

RESULT

PROCEED TO

DTC B1497/97 is not output

A

DTC B1497/97 is output

B

B

GO TO STEP 7

A

END (AIR CONDITIONING HARNESS IS DEFECTIVE)

7.

CHECK HARNESS AND CONNECTOR (POWER SOURCE)

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

(a) Disconnect the J19 air conditioning amplifier connector.

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

Standard voltage:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J19-21 (B) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE AIR CONDITIONING AMPLIFIER

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...