C1500 on Opel: How to Diagnose & Fix
C1500 — Opel-specific definition
1 Opel model · 1 documented issue · 1 critical · $250-$900 repair
C1500 on Opel by model: symptoms, diagnosis and fix
Zafira B models use an electro-hydraulic power steering pump (an electric motor and control unit driving a hydraulic pump, made by TRW or ZF) and commonly lose power assistance, often in both directions. Moisture getting past worn seals into the pump housing can damage the control electronics or motor winding, and long periods at full lock overload the motor. The fault frequently starts intermittently — assistance cuts out briefly then returns — before becoming permanent, leaving the steering very heavy and hard to turn. This is a recognised failure of the electric pump motor/control unit rather than the steering rack.
Common Symptoms
- Loss of power steering assistance
- Heavy / hard steering in both directions
- Intermittent loss of assist that later becomes permanent
- Power steering warning light
- Steering fault stored in module
How to Fix
Read the stored fault codes and check the pump's power supply, fuses, battery/charging voltage and connector first, as poor connections can mimic the fault. The electro-hydraulic pump can be remanufactured/repaired (motor and electronics rebuilt) by specialists at lower cost than a new genuine unit, or replaced with a new or reconditioned pump; match the OE number and left/right-hand-drive version. Refill and bleed the steering fluid after fitment.
Sources for this issue (3)
C1500 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1500 mean on a Opel?
On Opel, C1500: On Opel/Vauxhall (GM Europe) electric power steering columns, C1500 = Torque Position Sensor / Torque Sensor Fault, stored by the EPS column module. ecutesting.com lists it this way for the Meriva and Corsa C EPS columns. On these vehicles it is not a transfer case code. On Opel it is documented across 1 model: Zafira.
How much does it cost to fix C1500 on a Opel?
Published repair estimates on Opel range from $250 to $900 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.