Mercedes-Benz Sprinter / Dodge Sprinter. Manual — part 117
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Sensor Ground circuit between the APP Sensor and the
ECM.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 9
No
→ Repair the APP Sensor Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
9
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Using a 12-volt test light connected to 12-volts, check the Sensor Ground circuit of
the appropriate potentiometer.
Does the test light illuminate brightly?
All
Yes
→ Replace the Accelerator Pedal Position Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
10
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the APP Sensor Signal circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 11
No
→ Repair the APP Sensor Signal circuit for an open
Perform ROAD TEST VERIFICATION - VER-2.
11
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the APP Sensor Signal circuit.
Is the resistance below 1000 ohms?
All
Yes
→ Repair the APP Sensor Signal circuit for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 12
12
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the APP Sensor Signal circuit and the Sensor
Ground circuit at the APP Sensor harness connector.
Is the resistance below 1000 ohms?
All
Yes
→ Repair the APP Sensor Signal and Sensor Ground circuits for a
short together.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 13
76
DRIVEABILITY - DIESEL
P1222-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY —
Continued
TEST
ACTION
APPLICABILITY
13
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the Engine Control Relay.
Connect a jumper wire between cavity 30 and cavity 87 of the Engine Control Relay
connector.
Turn the ignition on.
Measure the voltage of the APP Sensor Signal circuit.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the APP Sensor Signal circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
14
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Accelerator Pedal Position Sensor 5-volt Supply circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 15
No
→ Repair the Accelerator Pedal Position Sensor 5-Volt Supply circuit
for an open.
Perform ROAD TEST VERIFICATION - VER-2.
15
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the Accelerator Pedal Position Sensor 5-Volt Supply
circuit and both Sensor Ground circuits in the APP Sensor harness connector.
Is the resistance above 1000 ohms?
All
Yes
→ Go To 16
No
→ Repair the 5-Volt Supply circuit for a short to the Sensor Ground
circuit.
Perform ROAD TEST VERIFICATION - VER-2.
16
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the Accelerator Pedal Position Sensor
5-volt Supply circuit.
Is the resistance below 1000 ohms?
All
Yes
→ Repair the Accelerator Pedal Position Sensor 5-Volt Supply circuit
for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 17
77
DRIVEABILITY - DIESEL
P1222-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY —
Continued
TEST
ACTION
APPLICABILITY
17
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the Engine Control Relay.
Connect a jumper wire between cavity 30 and cavity 87 of the Engine Control Relay
connector.
Turn the ignition on.
Measure the voltage of the Accelerator Pedal Position Sensor 5-Volt Supply circuit in
the ECM harness connector.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the Accelerator Pedal Position Sensor 5-Volt Supply circuit
for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
78
DRIVEABILITY - DIESEL
P1222-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY —
Continued
Symptom:
P1480-GLOW PLUG INDICATOR ERROR
When Monitored and Set Condition:
P1480-GLOW PLUG INDICATOR ERROR
When Monitored:
Witth the ignition on.
Set Condition:
the ECM recieves a glow plug inidcator error message from the instru-
ment cluster over the CAN Bus.
POSSIBLE CAUSES
VERIFY CURRENT DTC
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase the ECM DTCs.
Perform several ignition key cycles leaving the ignition on for 10 seconds, then off for
10 seconds.
With the DRBIII
t, read the ECM DTCs.
Did this DTC set again?
All
Yes
→ Refer Refer to Instrument Cluster information for the related
symptom(s).
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Test Complete.
79
DRIVEABILITY - DIESEL
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