Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Check TRAC & VSC solenoid.
PREPARATION:

Disconnect the 2 connectors from the hydraulic brake booster.

CHECK:

Check continuity between terminals A43 - 4 and A45 - 5, 6, 11 and 12 of the hydraulic brake booster.

OK:

Continuity

HINT:

Resistance of each solenoid at 20°C (68°F):

SA1, SA2, SIR: 4.05 to 4.55 Ω

SA3: 6.95 to 7.45 Ω

Fig 1: Checking Continuity Between Terminals A43 - 4 & A45 - 5, 6, 11 & 12 Of Hydraulic Brake Booster
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Replace hydraulic brake booster.
2. OK: Go to next step.
Check for open and short circuit in harness and connector between skid control ECU and hydraulic brake booster (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: If the same code is still output after the DTC is deleted, check the contact condition of each connection. If the connections are normal, the ECU may be defective.