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ZK603636 AA00 Knock sensor 2 B-20 (B) Connector: B-20 ZK603591 ECM B-10 (GR) Connector: B-10 AA00
CIRCUIT OPERATION ⦆ The knock sensor (terminal No. 1) sends a signal ⦆ The ground terminal (terminal No. 2) is grounded TECHNICAL DESCRIPTION ⦆ The ECM applies 5 V from the ground terminal side ⦆ The ECM judges whether the knock sensor signal ⦆ When the knock sensor output voltage is below the DTC SET CONDITIONS Check Condition ⦆ 2 seconds or more have passed since the engine Judgement Criterion ⦆ Knock sensor 2 output voltage has continued to be TROUBLESHOOTING HINTS (The most likely ⦆ Knock sensor 2 failed. ⦆ Harness damage. ⦆ Connector damage. ⦆ ECM failed.
DIAGNOSIS Required Special Tools: ⦆ MB991958: Scan Tool (M.U.T.-III Sub Assembly) ⦆ MB991824: V.C.I. ⦆ MB991827: USB Cable ⦆ MB991910: Main Harness A STEP 1. Check harness connector B-20 at the knock sensor Q:Is the harness connector in good condition? MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS> 13Ab-427 DIAGNOSTIC TROUBLE CODE PROCEDURES |