What does it mean when tow haul is flashing?
What does it mean when tow haul is flashing?
The Tow-Haul light flashing indicates something is going wrong, and it is going into the memory of the TCM (Transmission Control Module). Have a diagnostic test performed soon.
Why is the tow / haul switch not working?
Cycling the tow/haul switch again disables tow/haul mode and returns the transmission to a normal shift pattern. If the electrical circuit checks are OK and the tow/haul shift pattern is not occurring, there may be a mechanical/hydraulic condition that prevents tow/haul operation.
Why is the tow / haul shift pattern not occurring?
If the electrical circuit checks are OK and the tow/haul shift pattern is not occurring, there may be a mechanical/hydraulic condition that prevents tow/haul operation. Refer to Symptoms – Automatic Transmission.
What happens when Tow / Haul mode is selected?
When tow/haul mode is selected, the tow/haul switch input signal to the body control module (BCM) is momentarily toggled to zero volts. This signals the powertrain control module (PCM) to extend the length of time between upshifts and increase transmission line pressure.
Cycling the tow/haul switch again disables tow/haul mode and returns the transmission to a normal shift pattern. If the electrical circuit checks are OK and the tow/haul shift pattern is not occurring, there may be a mechanical/hydraulic condition that prevents tow/haul operation.
When do you not need the tow / haul button?
You must also consider the weight of the load. If it does not affect the truck’s ability, then there is no need to use the haul button. For instance, if you are carrying empty crates, the tow/haul mode is unnecessary. The tow/haul mode is useful in rough and steep landscapes.
If the electrical circuit checks are OK and the tow/haul shift pattern is not occurring, there may be a mechanical/hydraulic condition that prevents tow/haul operation. Refer to Symptoms – Automatic Transmission.
Why is my tow haul not working in Indiana?
Reason: Please do not qoute the post above yours. It’s hard to say, but get a wiring diagram and trace the circuit, it’s possible you have a bad switch or even bad wiring from the switch. What part of Indiana are you in btw?
