Rav4 2007 Cruise Retrofit Problem

[anchorman]

Top side of £25 then if we come to get one here.

Thanks.

[IanXT4]

Bought exactly that part last week from Mr UK Toyota £15.40 inc Vat. This included a small 8% discount.

[anchorman]

Better still.

If this works, it still represents a very good deal on fitting OE cruise control.

[downtime]

Just to bump this up.

Not had a chance to install the clutch switch yet. Will do in two weeks at the latest. I'll report back how it goes.

I've also bought a Toyota Avalon Auto dip mirror from eBay and planning on installing that at the same time as well.

[toyotaged]

Hi all

Rav4 2.2 D 4WD 2008 RHD.

I have bought the stalk and fitted it (no holes in cowl yet though!).

Nothing happens at all. I don't get a green light anywhere on dash pressing on-off at the end. I have looked at clutch and can see a switch which operates when the clutch is fully up and looks like the 88280-14030 as posted.

I can also see what looks like a mount hole and an operating plate which would operate a switch (which is not there) when the clutch is fully down. I assume this would form part of the engine-start interlock circuit.

Is there any test function for the dash lights other than when starting car? Does the green light come on during engine start even if there is no CC fitted? Obviously mine does not.

Could someone please confirm the green light comes on irrespective of the clutch switch though the CC may not work?- and where it is might be nice!

I may be missing something but I don't see why the clutch switch is required - the ECU knows speed and rpm so should notice PDQ that the engine and wheels are not linked. Come to that I don't see why I have a clutch switch fitted - no CC, no DAC, no start-interlock so what is it for?

Thanks

Graham

[Davrav]

Hello Graham and welcome to the club

Have you checked for a CC fuse?

[anchorman]

You have a clutch switch because you have hill start assist.

This is the info from the manual and you will see that the clutch switch is in the circuit;

CRUISE CONTROL SYSTEM (for 1AZ-FE, 2AZ-FE)

This system is controlled by the ECM, and is activated by the throttle position sensor and motor. The ECM controls the following functions: ON-OFF, SET / COAST, RESUME / ACCEL, CANCEL, vehicle speed operation, motor output control, and overdrive control.

The ECM compares the driving vehicle speed from the combination meter with the stored vehicle speed set through the cruise control switch. The ECM controls the throttle valve motor of the throttle body to open the valve when the driving speed is less than the stored speed.

The ECM receives signals such as ON-OFF, SET / COAST, RESUME / ACCEL, and CANCEL from the cruise control switch.

The ECM illuminates the combination meter CRUISE main indicator light when it receives the cruise control switch ON signal.

The ECM cancels the cruise control system when the brake pedal is depressed and the ECM receives the stop light switch signal.

The ECM cancels the cruise control system when the shift lever is moved from D or 3 to a position other than D or 3, and the ECM receives the PNP switch signal (A/T).

The ECM cancels the cruise control system when the clutch pedal is depressed and the ECM receives the clutch switch signal (M/T).

CRUISE CONTROL SYSTEM (for 2AD-FTV, 2AD-FHV)

The cruise control system controls the vehicle speed by using the ECM to change the fuel injection quantity. The ECM controls the following functions: ON-OFF, SET/COAST, RESUME/ACCEL, CANCEL, vehicle speed operation, motor output control, and overdrive control.

The ECM compares the vehicle speed from the speed sensor with the stored vehicle speed set through the cruise control switch. When the actual vehicle speed exceeds the stored vehicle speed, the ECM decreases the fuel injection quantity. When the actual vehicle speed is less than the stored vehicle speed, the ECM increases the fuel injection quantity.

The ECM receives signals such as ON-OFF, SET/COAST, RESUME/ACCEL, and CANCEL from the cruise control switch.

The ECM illuminates the combination meter's CRUISE main indicator light when it receives the cruise control switch ON signal.

The ECM cancels the cruise control system when the brake pedal is depressed and the ECM receives the stop light switch signal.

The ECM cancels the cruise control system when the clutch pedal is depressed and the ECM receives the clutch switch signal.

LIMIT CONTROL

Low speed limit

The lowest possible limit of the speed setting range is set at approximately 40 km/h (25 mph). The cruise control system cannot be set when the driving vehicle speed is below the low speed limit. Cruise control operation will be automatically canceled when the vehicle speed decreases below the low speed limit 40 km/h (25 mph) while the cruise control is in operation.

High speed limit

The highest possible limit of the speed setting range is set at approximately 200 km/h (125 mph). The cruise control system cannot be set when the driving vehicle speed is over the high speed limit. Also, +/RES cannot be used to increase speed beyond the high speed limit.

OPERATION OF CRUISE CONTROL (for 1AZ-FE, 2AZ-FE)

The cruise control switch operates 7 functions: SET, COAST, TAP-DOWN, RESUME, ACCELERATION (ACCEL), TAP-UP, and CANCEL. The SET, TAP-DOWN and COAST functions, and the RESUME, TAP-UP and ACCEL functions are operated with the same switch. The cruise control switch is an automatic return type switch which turns on only when pressed in each arrow direction and turns off when released.

SET CONTROL

Vehicle speed is stored and constant speed control is maintained when pushing the switch to -/SET while driving with the cruise control switch ON (the CRUISE main indicator light is illuminated), and the vehicle speed is within the set speed range (between the low and high speed limits).

COAST CONTROL

The ECM changes the cruise control demanding throttle opening angle to 0° and decelerates the vehicle when -/SET on the cruise control switch is pressed and held while the cruise control system is operating. When the cruise control switch is released from -/SET, the vehicle speed is stored and constant speed control is maintained.

HINT:

The throttle valve is not fully closed due to idle speed control, etc.

w/ VSC:

The brake is also used to decelerate the vehicle.

TAP-DOWN CONTROL

When tapping down the cruise control switch to -/SET (for approximately 0.5 seconds) while the cruise control system is in operation, the stored vehicle speed decreases each time by approximately 1.6 km/h (1.0 mph). When the cruise control switch is released from -/SET and the difference between the driving and stored vehicle speed is less than 5 km/h (3 mph), the vehicle speed is stored and constant speed control is maintained.

ACCEL CONTROL

The throttle valve motor of the throttle position sensor and motor is instructed by the ECM to open the throttle valve when +/RES on the cruise control switch is pressed and held while the cruise control system is operating. When the cruise control switch is released from +/RES, the vehicle speed is stored and constant speed is maintained.

TAP-UP CONTROL

When tapping up the cruise control switch to +/RES (for approximately 0.5 seconds) while the cruise control system is in operation, the stored vehicle speed increases each time by approximately 1.6 km/h (1.0 mph). However, when the difference between the driving and the stored vehicle speed is more than 5 km/h (approximately 3.1 mph), the stored vehicle speed will not be changed.

RESUME CONTROL

If the cruise control operation was canceled with the stop light switch or the CANCEL switch, and if driving speed is within the set speed range, setting the cruise control switch to +/RES restores the vehicle speed memorized at the time of cancellation, and constant speed is maintained.

MANUAL CANCEL CONTROL

Performing any of the following cancels the cruise control system (the stored vehicle speed in the ECM is maintained).

Depressing the brake pedal

Pulling the cruise control switch to CANCEL

Moving the shift lever to any position except D or 3 (A/T)

Depressing the clutch Pedal (M/T)

OPERATION OF CRUISE CONTROL (for 2AD-FTV, 2AD-FHV)

The cruise control switch operates 7 functions: SET, COAST, TAP-DOWN, RESUME, ACCELERATION (ACCEL), TAP-UP, and CANCEL. The SET, TAP-DOWN and COAST functions, and the RESUME, TAP-UP and ACCEL function are operated with the same switch. The cruise control switch is an automatic return type switch which turns on only when pressed in each arrow direction and turns off when released.

SET CONTROL

Vehicle speed is stored and constant speed control is maintained when setting the switch to SET COAST while driving with the cruise control switch ON (the CRUISE main indicator light is illuminated), and the vehicle speed is within the set speed range (between the low and high speed limits).

COAST CONTROL

When the SET/COAST on the cruise control switch is pressed and held while the cruise control system is operating, ECM changes the required fuel injection quantity to 0 and decelerates the vehicle. When the cruise control switch is released from SET/COAST, the vehicle speed is stored and constant speed control is maintained.

HINT:

w/ VSC:

The brake is also used to decelerate the vehicle.

TAP-DOWN CONTROL

When tapping down the cruise control switch to SET/COAST (for approximately 0.6 seconds) while the cruise control system is operating, the stored vehicle speed decreases each time by approximately 1.6 km/h (1.0 mph). When the cruise control switch is released from SET/COAST and the difference between the driving and stored vehicle speed is less than 5 km/h (3 mph), the vehicle speed is stored and constant speed is maintained.

ACCEL CONTROL

While the cruise control system is activated, if the main switch is set to RESUME/ACCEL, the EDU increases the fuel injection quantity. When the cruise control switch is released from RESUME/ACCEL, the vehicle speed is stored and constant speed is maintained.

TAP-UP CONTROL

When tapping up the cruise control switch to RESUME/ACCEL (for approximately 0.6 seconds) while the cruise control system is operating, the stored vehicle speed increases each time by approximately 1.6 km/h (1.0 mph). However, when the difference between the driving and the stored vehicle speed is more than 5 km/h (3 mph), the stored vehicle speed will not be change.

RESUME CONTROL

If the cruise control operation was canceled with the stop light switch or the CANCEL switch and if driving speed is within the set speed range, setting the cruise control switch to RESUME/ACCEL restores the vehicle speed memorized at the time of cancellation and constant speed is maintained.

MANUAL CANCEL CONTROL

Performing any of the following cancels the cruise control system.

Depressing the brake pedal

Pulling the cruise control switch to CANCEL

Pushing the cruise control switch OFF

Depressing the clutch pedal

[Davrav]

Yeh, wot 'e said and the word 'CRUISE' lights up next to the '4' on the rev counter when on and goes out when off.............

[anchorman]

Additional info;

description.pdf

layout.pdf

system.pdf

[toyotaged]

Hi again

Thanks for all that.

So I have HAC eh, wonder what it does....

I have just measured resistance of the stalk switches - everything is fine - as per diagram posted.

Unfortunately there is no voltage on the control, either it is not coming out of the ECU or it is getting lost on the way. You mentioned a CC fuse? Any idea where it might be? what else might run through same fuse?

I forgot about it but I found a whole bunch of info on the net a while ago, US I think, but I guess it is all the same.

04600210.pdf shows the switch I have - it shows the 4 pole connector with two wires, and gives sensible values for the resistance.

046001.pdf shows the ECU as I have it with two big connectors

046006.pdf first page shows the signal coming from the ECU direct to the CCS (electrically). So I assume I should find Vbatt on the wire until a switch is pressed. Next page shows the spiral cable I think I will look at this next - remembering to disconnect Battery again!

If I could find the link again I would post it but if anyone wants this info (595M), and has any idea how I could send it, you are welcome. It seems to date from 2006 but I think the US 2006 model is alittle ahead of our 2006.

Graham

04600210.pdf

046001.pdf

046006.pdf

[toyotaged]

Hia again

Progress - in a way.

Page CC-15 in 046001.pdf shows wire 40 of A9 should go to ground when the on-off switch is pressed - open circuit otherwise. Mine doesn't, so I guess that's the problem.

So how to get at the spiral cable?

I am posting this in case anyone else is going down this path and in case anyone has any better ideas. please.

Graham

[toyotaged]

Hi

Something to check before investing in a stalk?

If I had realised that there was no wire going from pin 40 I might not have bothered measuring it! To be fair it is a pain trying to look at the back of the connector, upside down, under the bonnet, in the half dark with my aged eyes, but I should have noticed!

Also the attached jpg shows the end of the spiral cable behind the wheel. You will see there is only one (green) wire - that's the horn, and there are no loose wires hanging about.

I pulled out the rubber blanking plug on pin 40and pulled the pin to ground to see if that put on the light. It didn't nor can I measure any voltage even with the engine running.

Maybe I am not making a connection through the hole but I think it likely, maybe the voltage only comes on when the vehicle is moving more than 30mph, maybe its not a continuous voltage, could easily be pulsed.

Does the light come on when the on/off is pressed even if the vehicle is stationary? Does anyone know what this voltage is like? If it is confirmed that it should come on when statioary I will drag a 'scope to the car and have a look again.

Mind you even if that works the chances of making a connection through the A plug on the ECU and the spiral cable connector to string a wire from one end to t'other are not good.

In the end all Rav4's are not created equal but it was worth a try.

Graham

[downtime]

Clutch switch installed today and cruise now works perfectly.

It was a !Removed! to install. Very very tight place. Knee airbag needs to be removed to get access.

Thank you everyone for help you gave me. It was spot on.

Oh and auto dimming mirror also installed. That was a piece of cake :)

[gjnorthall]

Could you please outline how to remove the knee airbag. Also where did you find the connector for the clutch switch - I've had a look around with a mirror and light but can't see a connector. Many thanks.

[downtime]

The knee airbag is attached with four bolt. Two just on the sides of the steering column and two are visible from under the airbag.

You can see the connector for the clutch switch is near the location to where the clutch switch is going.

There's a bolt in place of the switch that needs to be removed first.

It is quite evident when you see the bolt. Just look for where the clutch pedal hits the stopper bolt. That needs to go and clutch switch goes there.

Sorry for the not so well organized explanation. :)

[gjnorthall]

Many thanks for the advice.

After removing the airbag, I found access easier by removing the plastic heater duct to the footwell - it simply unclips. The new switch was installed in a tapped hole adjacent to the clutch pedal stop bolt - it was screwed in sufficiently for the switch to be acivated but with the return position of the pedal still being limited by the existing stop bolt rather than the switch. Checked the action of the switch with the resistance scale of a multimeter before putting everything back together.

There were two redundant electrical connectors taped near the top of the clutch pedal. They look similar but only one fits into the socket on the new switch.

Cruise function now works fine.