Diagnostic codes question(s)?

What is your question?

I recently had my 99' Volvo S70 awd (71,000 miles) diagnosed @ Autozone (complimentary)due to a recent CEL illuminated in the dash. The following codes are was presented to me: P1633 and P1618. Could anyone assist me in knowing what these codes mean? Thanks in advance. Awesome website by the way!

rocky1964 in Oak Park IL

Jun 16, 2009

Popular Answer

What are the best Volvo repair shops?

RepairPal Certified shops can diagnose and repair your 1999 Volvo S70. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

1999 Volvo S70 auto repair 1999 Volvo S70 estimates 1999 Volvo S70 questions 1999 Volvo S70 problems 1999 Volvo S70 recalls

What is your question?

Popular Answer

Diagnostic codes question(s)?

What is your question?

rocky1964 in Oak Park IL

Jun 16, 2009

1 Reply

Popular Answer

patrick mannionon Jun 17, 2009

Any code that starts with P1 are manufacturer specific. P1633 is a "speed signal error", P1618 "malfunction in a control module". Problems with these cars are usually the Anti-lock brake control module. Several companies re-manufacturer these computers.

Join the conversation!

Popular Answer

What are the best Volvo repair shops?

RepairPal Certified shops can diagnose and repair your 1999 Volvo S70. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.