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Geely Emgrand X7. Manual part - 59
(a) Rotated ignition switch to OFF position . (b) Disconnect cylinder No.4 fuel injector wiring harness connector (c)
Disconnect ECM harness (d) Measure resistance between cylinder No.4 fuel injector wiring ECM线束连接器 EM01 1 2 4 5 3 81 63 44 25 6 62 43 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 26 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 45 46 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 64 65 66 80 79 78 77 76 75 74 73 72 71 70 69 68 67 NL02-0033c (e) Measure resistance between cylinder No.4 fuel injector wiring harness connector EM17 terminal No.A and a reliable ground. Inspect whether the circuit is short to ground. Otherwise, (f) Measure voltage between cylinder No.4 fuel injector harness connector EM17 terminal No.A and a reliable ground. Inspect whether the circuit is short to power supply. Otherwise, repair Test Items Standard Value Resistance Between EM17 (A) and EM01 (26) Less than 1 Ω Resistance Between EM17 (A) and a Reliable Ground 10 kΩ or higher Voltage Between EM17 (A) and a Reliable Ground 0V Execute next step as per normal.
Step 7 Inspect the ECM Power Supply Circuits. (a) Inspect whether ECM power supply circuit is normal. (b) Inspect whether ECM ground circuit is normal.
Step 8 Replace ECM Refer to 2.2.7.11 Crankshaft Position Sensor (CKP) Learn to carry out the crankshaft position
Next No Repair the faulty part. Yes Next ECMharness connectorEM01 235 |