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HOSE AS 3237426 - Caterpillar

3237426 HOSE AS Caterpillar parts HOSE
Alternative (cross code) number:
Caterpillar 3237426 HOSE AS

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01 May 2021

US: 1A Auto
1A Auto Exhaust Manifold & Gasket Kit Set for Jeep Wrangler Cherokee Wagoneer 4.2L
1A Auto Reference Number(s): 327-1158,3237426,674-237
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Open Circuit Test
Table 1
Troubleshooting Steps Values Results
1. Identify Open Circuit
A. Identify the connectors and wires in the suspect circuits.
Use the machine Electrical Schematic.
B. Turn OFF the keyswitch and the disconnect switch.
C. Disconnect the component and the ECM from the harness.
D. At one of the disconnected harness connections, place a jumper wire from the suspect wire contact to frame ground.
E. At the other connector of the harness, measure the resistance from the suspect wire contact to frame ground(1).
The resistance is < 5 Ω.
OK - The resistance is < 5 Ω.
The circuit is not open.
Not OK - The resistance is ≥ 5K Ω.
The circuit is open(2).
Repair or replace the harness.
(1) Use a calibrated digital multimeter for this check.
(2) A resistance ≥ 5 Ω but < 5K Ω, indicates a loose or corroded connection. A resistance ≥ 5K Ω indicates an open.

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