Last Modified: 4-30-2014 6.6 C Doc ID: RM000001F6B000X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C1561/61; Lock Mechanism Malfunction; 2006 MY LX470 [05/2005 -        ]

DTC

C1561/61

Lock Mechanism Malfunction

DESCRIPTION

When the VGRS ECU detects a malfunction in the lock mechanism, it turns the warning light on, records the DTC, and stops VGRS operation.

DTC No.

DTC Detection Condition

Trouble Area

C1561 / 61

The system detects that the LG terminal voltage is equal to battery voltage x 0.4 +- 3 V, or that the LG terminal voltage is outside the range of battery voltage x 0.6 +- 3 V for 1.2 sec.

  • VGRS actuator
  • VGRS ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK POSITION OF VGRS ECU CONNECTORS

(a) Check that VGRS ECU connectors are properly connected to the ECU.

OK:

Connection is normal

NG

DTC C1561/61 IS DETECTED BECAUSE CONNECTOR IS DISCONNECTED OR IS LIKELY TO BE DISCONNECTED. CONNECT CONNECTOR CORRECTLY

OK

2.

CHECK WIRE HARNESS

(a) Turn the ignition switch OFF.

(b) Disconnect the V13 VGRS ECU connector.

(c) Measure the resistance between terminals V13-10 (MV) and V13-3 (LGND) of the VGRS ECU connector.

Standard resistance:

1 to 100 Ω

(d) Check the continuity between terminals V13-10 (MV) and V13-3 (LGND) of the VGRS ECU and body ground.

OK:

Continuity

NG

REPLACE VGRS ACTUATOR

OK

REPLACE VGRS ECU