TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the APP and CMP Sensor harness connectors.
Disconnect the ECM harness connectors.
Measure the resistance between ground and ECM harness connector cavities C1-38,
C1-37, C2-13, C2-24 and C2-25.
Is the voltage below 1000 ohms for any of the measurements?
All
Yes
→ Repair the circuit(s) that measured below 1000 ohms for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Camshaft Position Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the Sensor Ground circuit and the CMP Sensor
5-volt Supply circuit at the CMP Sensor harness connector.
Is the resistance above 1000 ohms?
All
Yes
→ Go To 5
No
→ Repair the Camshaft Position Sensor 5-volt Supply circuit for a
short to the Sensor Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
5
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the 5-volt Supply circuit and each of the Sensor
Ground circuits at the APP Sensor harness connector.
Is the resistance above 1000 ohms for both measurements?
All
Yes
→ Go To 6
No
→ Repair the APP Sensor 5-volt Supply circuit for a short to the
Sensor Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
6
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Turn the ignition on.
With the DRBIII
t, erase ECM DTCs.
Turn the ignition off for 10 seconds. Turn the ignition on.
With the DRBIII
t, read ECM DTCs.
Does the DRB display this DTC?
All
Yes
→ Go To 7
No
→ Replace the APP Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
97
DRIVEABILITY - DIESEL
P1611-SENSOR SUPPLY 1 VOLTAGE IS TOO LOW —
Continued