Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
7 (IG) - 8 (SK)	Sonar switch off	10 kΩ or higher
7 (IG) - 8 (SK)	Sonar switch on	Below 1 Ω

If the result is not as specified, replace the back sonar or clearance sonar switch assembly.

(b) Check that the switch illuminates.

OK:

Tester Connection

Specified Condition

Battery positive (+) → Terminal 1 (ILL+)

Battery negative (-) → Terminal 6 (ILL-)

Illuminates

If the result is not as specified, replace the back sonar or clearance sonar switch assembly.

Text in Illustration

*a	Component without harness connected (Back Sonar or Clearance Sonar Switch Assembly)

Toyota Tundra Service Manual > Automatic Transmission System: Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1) (P0973,P0974)
DESCRIPTION Shifting from 1st to 6th is performed in combination with ON and OFF operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR, which are controlled by the ECM. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shif ...

Toyota Tundra Owners Manual