On-Vehicle Inspection
WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK STEREO COMPONENT AMPLIFIER CIRCUIT
- Disconnect the S6 amplifier connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
STEREO COMPONENT AMPLIFIER CIRCUIT (RESISTANCE)Tester Connection Specified Condition S6-12 (E) - Body ground Below 1 Ω S6-13 (GND2) - Body ground Below 1 Ω - Measure the voltage of the wire harness side connector.
Standard voltage
STEREO COMPONENT AMPLIFIER CIRCUIT (VOLTAGE)Tester Connection Specified Condition S6-7 (+B) - Body ground 10 to 14 V S6-16 (+B2) - Body ground 10 to 14 V If the results are not as specified, there may be a malfunction on the wire harness side.
- CHECK STEREO COMPONENT CONTROLLER ASSEMBLY CIRCUIT
- Disconnect the R39 controller connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
STEREO COMPONENT CONTROLLER ASSEMBLY CIRCUIT (RESISTANCE)Tester Connection Specified Condition R39-17 (GND) - Body ground Below 1 Ω - Measure the voltage of the wire harness side connector.
Standard voltage
STEREO COMPONENT CONTROLLER ASSEMBLY CIRCUIT (VOLTAGE)Tester Connection Condition Specified Condition R39-24 (ACC) - Body ground Ignition switch OFF, radio receiver switch ON Below 1 V R39-24 (ACC) - Body ground Ignition switch ACC or ON, radio receiver switch ON 10 to 14 V R39-12 (+B) - Body ground Always 10 to 14 V If the results are not as specified, there may be a malfunction on the wire harness side.
- CHECK DISC PLAYER CHANGER CIRCUIT (w/ NAVIGATION SYSTEM)
- Disconnect the D26 changer connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
DISC PLAYER CHANGER CIRCUIT (w/ NAVIGATION SYSTEM) (RESISTANCE)Tester Connection Specified Condition D26-20 (GND) - Body ground Below 1 Ω - Measure the voltage of the wire harness side connector.
Standard voltage
DISC PLAYER CHANGER CIRCUIT (w/ NAVIGATION SYSTEM) (VOLTAGE)Tester Connection Condition Specified Condition D26-1 (ACC) - Body ground Ignition switch OFF Below 1 V D26-1 (ACC) - Body ground Ignition switch ACC or ON 10 to 14 V D26-10 (+B) - Body ground Always 10 to 14 V If the results are not as specified, there may be a malfunction on the wire harness side.
- CHECK RADIO RECEIVER ASSEMBLY CIRCUIT
- Disconnect the R36 receiver connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
RADIO RECEIVER ASSEMBLY CIRCUIT (RESISTANCE)Tester Connection Specified Condition R36-20 (GND) - Body ground Below 1 Ω - Measure the voltage of the wire harness side connector.
Standard voltage
RADIO RECEIVER ASSEMBLY CIRCUIT (VOLTAGE)Tester Connection Condition Specified Condition R36-1 (BU) - Body ground Always 10 to 14 V R36-11 (ACC) - Body ground Ignition switch OFF Below 1 V R36-11 (ACC) - Body ground Ignition switch ON 10 to 14 V If the results are not as specified, there may be a malfunction on the wire harness side.
HINT:
Check the wire harness between radio receiver assembly and DVD changer, between radio receiver assembly and stereo component amplifier.
- CHECK STEERING PAD SWITCH
- Disconnect the C18 switch connector.
- Measure the resistance of the switch.
Standard resistance
STEERING PAD SWITCHTester Connection Condition Specified Condition C18-12 (AU1) - C18-10 (EAU) Not pushed Approx. 100 kΩ C18-12 (AU1) - C18-10 (EAU) SEEK+ switch pushed Below 1 Ω C18-12 (AU1) - C18-10 (EAU) SEEK-switch pushed Approx. 0.3 kΩ C18-12 (AU1) - C18-10 (EAU) VOL+ switch pushed Approx. 1 kΩ C18-12 (AU1) - C18-10 (EAU) VOL-switch pushed Approx. 3.2 kΩ C18-11 (AU2) - C18-10 (EAU) Not pushed Approx. 100 kΩ C18-11 (AU2) - C18-10 (EAU) MODE switch pushed Below 1 Ω If the result is not as specified, the switch may have a malfunction.