Toyota RAV4 manuals

Toyota Sienna Service Manual: Back-up Power Source Circuit

DESCRIPTION

This is the back-up power source for the A/C amplifier. Power is supplied even when the ignition switch is off and is used for diagnostic trouble code memory, etc.

WIRING DIAGRAM

Back-up Power Source Circuit

INSPECTION PROCEDURE

1 INSPECT FUSE (ECU-B)

(a) Remove the ECU-B fuse from the engine room junction block.

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

Standard resistance

2 CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY)

CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY)

(a) Disconnect the connector from the A/C amplifier.

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

Standard voltage

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

ACC Power Source Circuit
DESCRIPTION This circuit supplies power to the A/C amplifier and the illumination for the clock. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT FUSE (ECU ACC) (a) Remove the ECU ACC fuse fr ...

Air conditioning system (for manual air conditioning system)
...

Other materials:

DTC check / clear
1. CHECK DTC  Connect the intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the DLC3.  Turn the ignition switch on.  Turn the tester ON.  Enter the following menu items: DIAGNOSIS / OBD/ MOBD / IM ...

Installation
1. INSTALL VANE PUMP ASSEMBLY (a) Temporarily install the bolt to the vane pump assembly. (b) Install the vane pump assembly. (c) Temporarily install the bolt (B). (d) Using SST, tighten the 2 bolts. SST 09249-63010 Torque:Without SST 43 N*m (439 kgf*cm, 32 ft.*lbf) With SST 29 ...

Unmatched Encryption Code
DTC B2794 Unmatched Encryption Code DESCRIPTION This DTC is output when a key with an incomplete key code is inserted into the ignition key cylinder. DTC No. DTC Detection Condition Trouble Area B2794 Key with incomplete key code inserted Key IN ...

В© 2011-2026 Copyright www.tsienna.net