Crank/CYL/TDC Sensors
- CRANK/CYL/TDC sensors are located within distributor. To test sensor and wiring connections, turn ignition off. Probe appropriate ECM harness terminals to check for resistance of each sensor. See CRANK/CYL/TDC SENSOR RESISTANCE table. If resistance is not as specified, go to step 3.
- If resistance is as specified, check for continuity to ground at each terminal. If continuity exists, unplug sensor connector and recheck appropriate ECM terminal for continuity to ground. If continuity still exists, repair short to ground in harness. If continuity does not exist, replace sensor assembly.
- Unplug harness connector at sensor. See Fig 1
. Measure sensor resistance at connector. See CRANK/CYL/TDC SENSOR RESISTANCE
table. If sensor resistance is as specified, repair open, short, or corrosion in sensor harness between ECM and sensor. If sensor resistance is not as specified, replace sensor assembly.CRANK/CYL/TDC SENSOR RESISTANCE
Application ECM Terminals Ohms CRANK B15 & B16 350-700 CYL B11 & B12 350-700 TDC B13 & B14 350-700