High Priority 100% confidence

A/C cooling is weak and gradually loses performance

in Toyota Corolla (2001-2012)

Symptoms

  • Weak cabin cooling

DTC error codes

Fault in A/C module (B1422 - Compressor Lock Sensor)

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A/C Technical Specifications

(E21)

Refrigerant: R1234yf Amount (g): 475g Oil: PAG YF PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 80ml

(E21) Hybrid

Refrigerant: R1234yf Amount (g): 475g Oil: ND11 POE 120 GT Oil (ml): 86ml

XII - (E210)

Refrigerant: R1234yf Amount (g): 400-450g Oil: PAG YF ISO 46 Oil (ml): 100 - 130ml
See full specification

Other problems in Corolla

A/C works intermittently or cuts out during driving

Air conditioning stopped cooling / no response to AC button

High Priority

Slow loss of refrigerant or A/C system leakage

High Priority

A/C works intermittently or cuts out during driving

Hissing from vents and slow loss of refrigerant

High Priority

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