Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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N

PINPOINT TEST N: DTC C1289 - SECONDARY BRAKE PRESSURE SENSOR INPUT CIRCUIT FAILURE

Test N1:




Test N2 - N3:




Test N4 - N5:




Test N5:





NOTE: When diagnosing this DTC, the secondary brake pressure sensor is the C4217 pin 1, circuit 9-CF65 (BN/WH). The pressure sensor connectors can be connected to either the primary or the secondary pressure sensor and still operate correctly, therefore the wire color must be looked at before continuing diagnostics.