Toyota Sienna Service Manual: Engine

Installation

1. INSTALL ENGINE OIL COOLER (a) Clean the oil cooler contact surface on the cooler mounting. (b) Install a new O-ring to the oil cooler. (c) Install the oil cooler assembly with the uni ...

Ignition system

Parts location System diagram ...

Other materials:

Headlight Relay Circuit
DESCRIPTION The Multiplex network body ECU controls HEAD relay when signal is received from headlight dimmer switch assembly. WIRING DIAGRAM INSPECTION PROCEDURE 1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER Connect the intelligent tester to DLC3.  Turn the ignition switch ON and ...

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE STEERING WHEEL NO. 2 LOWER COVER 3. REMOVE STEERING WHEEL NO. 3 LOWER COVER 4. REMOVE HONE BUTTON ASSEMBLY 5. REMOVE STEERING PAD SWITCH LH  Disconnect the connector. Disconnect the connector of cruise control main swi ...

Check for short circuit
(a) If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground (below).   (b) Check the resistance with the body ground. (1) Disconnect connectors A and C and measure the resistance. Standard resistance (Fig. 6) HIN ...