Multiple Warning Lights & Steering Issues Point to ABS Fault

Having worked on my Chrysler Grand Voyager 2002 diesel, I can share some similar experiences as someone with moderate car repair knowledge. The tire pressure monitoring system was giving false readings due to a faulty valve in one of the tire sensors. This triggered both the tire pressure warning and ABS warnings, since the systems are interconnected. The steering symptoms you describe match exactly what I experienced, heavy steering and vibrations. My repair shop performed a full diagnostic scan which revealed the defective tire sensor valve. They had to replace the valve and recalibrate the tire pressure monitoring system. Total cost was 280€ for parts and labor. After fixing this, all warning lights cleared and the steering returned to normal. The key is getting accurate tire pressure readings. When tire sensors malfunction, they can send incorrect data to the ABS system, causing multiple warning lights and performance issues. To better assist, could you share: Current tire pressures on all wheels, Whether the tire pressure warning is constant or intermittent, If any recent tire work was performed, Whether the ABS warning appears at specific speeds This would help determine if your issue matches what I encountered with the faulty sensor valve. Make sure to get the tire monitoring system properly diagnosed, as driving with inaccurate readings can affect both safety and tire wear.

Last serviced at 21598 KM. Thanks for the detailed response regarding the tire pressure sensor issue. I checked all tire pressures manually after seeing your reply. Found a significant pressure loss in the front right tire, down to 1.8 bar while others are at 2.4 bar. This could explain the steering wheel shake. When inspecting closer, discovered a small punctured tire area near the sidewall. The air leak seems consistent with the symptoms. The ABS warning is indeed constant above 30 km/h, which makes sense if the wheel speed sensors are getting inconsistent readings due to the tire pressure variation. Will take it to the shop tomorrow to properly diagnose and likely need a tire replacement since sidewall damage usually cant be repaired. Hope the repair costs stay reasonable like in your case with the sensor valve.

Thanks for the follow-up and tire pressure check. Your findings actually match a common pattern with these Voyagers, when one tire drops significantly below others, it typically triggers both the tire pressure warning and ABS systems. That 1.8 bar reading with sidewall damage definitely explains your symptoms. On my Voyager, I learned that tire pressure differences greater than 0.5 bar between wheels can trigger the ABS warning. The system interprets the uneven tire rotation speeds as a potential stability issue. The sidewall puncture location unfortunately means replacement is your only safe option. While the 280€ I spent was for just the sensor valve, a quality replacement tire typically runs 150-200€ plus mounting and balancing. Make sure they check the other tires thoroughly while its in the shop, these tire sensor valves often start failing around similar mileage points. Given your description, the steering shake and ABS warnings should resolve once you have properly inflated tires with matching pressures. The heavy steering feel is likely from the stability control system trying to compensate for the pressure imbalance. The good news is this appears simpler than my sensor valve issue, though costlier due to needing a new tire. Would be interested to hear what the shop finds during their inspection.

Thanks for helping identify the tire pressure sensor issue. After manually checking all tires, I found a major pressure loss in the front right, down to 1.8 bar while others read 2.4 bar. This explains the steering wheel shake. Upon closer inspection, I spotted a small punctured tire near the sidewall causing the air leak. The ABS warning stays on constantly above 30 km/h, which makes sense if wheel speed sensors are getting inconsistent readings from the tire pressure variation. Planning to take it to the shop tomorrow for proper diagnosis. Since its sidewall damage, I expect needing a full tire replacement as those typically cant be repaired. Hoping the total repair costs stay reasonable like your sensor valve case at 280€. Will update once I know more. At least having found the punctured tire and pressure loss helps explain the symptoms. The tire pressure difference of 0.6 bar between wheels definitely isnt helping the stability systems work properly. Last service was at 21598 KM, so due for a thorough check anyway. Main concern now is finding a quality replacement tire and ensuring no sensor issues are causing problems once the new tire is mounted.